Below is how I approached it: (or you can directly jump to the option evaluation part after the underlined portion)

The critic writes that, in contrast to the conventional view of inscription as (i) ___ expression or even as the outcome of a chance operation,
the artist‘s negation of the inscription as an act of personal enunciation serves her model of (ii) ___, (iii)___ the primacy of the self, indicating her implicit critique of her peers‘ ego or virtuosic authorship.

Lets break it in chunks: (best approach when you are feeling lost & cant seem to move forward in a TC)
The critic writes that,
-> Now we are going to see the critic's review on something - probably some form of literary, art piece etc.

in contrast to the conventional view of inscription as (i) ___ expression or even as the outcome of a chance operation
-> I am not completely able to grasp the term "inscription", the only thing I can guess is some form literary work probably of a sculpture etc. (based on the word - inscribing or writing on something), anyways I would treat is as a block or entity "inscription"
-> So we get to know traditionally "inscription" was considered as (i)--- expression or as a result of some fortuitous operation [not enough to deduce the blank, at this point however I tried to look for a word related to luck/chance something like serendipity or even its opposite - but it didnt match with the options- so not enough]
-> and this is being contrasted going forward


the artist‘s negation of the inscription as an act of personal enunciation serves her model of (ii) ___
-> Okay, we get to know something about the artists's work & furthermore about the "inscription"
What do we get to know regarding the "inscription" ?
-> Inscription is also treated as an "act of personal enunciation" (though i get it now, frankly I didnt get it then), and we can add this to the above traditionally followed features of "inscription". => This may be the hint for blank (i)

What do we get to know regarding the artist & her work ?
-> taking hint from the keyword "in contrast" - we get to know this artist's work is directly opposite to the entire traditional view
-> and this is how she works - blank (ii) (so we are looking for a word that will go in opposite direction to the traditional view)

(iii)___ the primacy of the self, indicating her implicit critique of her peers‘ ego or virtuosic authorship.
-> further adding to her work & here methodology, critic is drawing a relationship with the characteristic of being conceited or excessively boasting oneself
-> we get to know her work is indirect criticism of her peer artists' mastery & their resultant ego => This is the clue we were waiting for.

So now let me complete the info we have regarding the traditional view of "inscription"
1.(i)--- expression
2.as a result of some fortuitous operation
3.egotist expression of an artist & his/her mastery

Characteristic of author's works:
1. negates this traditional view
2. ___ primacy of ego
3. directly attacks this "egoism" or "conceitedness"

now lets start working back
(iii)___ the primacy of the self => should mirror the following, thus we are looking for a word meaning "attacking", "rejecting".
Best match is "critical of";
"crying up" => is the opposite that we are looking for & "fleeing from" => she is not running from this, rather she is attacking the ego

Blank (ii) should follow this characteristic so we are looking for a word meaning - "not vain" or "not boastful"
"humility" => fits this; others - "reclusion" & "objectivity" is clearly out of context

Blank (i) is closely related to the traditional view & in contrast to artists work & methodology, so it should mirror - "ego", "self"
Best fit: "individualistic"; others inveterate (being habitual) & unequivocal (not ambiguous) doesn't match the context