One important thing to note here is that the choices should always be in the same part of speech, if you want make the audience think. In the given choices, reluctant, apt, prone and comprehensive are adjectives, illuminate is transitive verb and intimidated is passive voice. If, out of six choices, three are going to be irrelevant, the task becomes pretty easy. Nevertheless, we have to appreciate the poster's initiative.

I think answer is D

plz explain question?