Carcass wrote:
Dear Sir,
when you pick the wrong answer, I do know that for a student is natural to say: for me the answer is X and the OA is wrong.
My suggestion is to ask here on the board: why Did I pick it wrong?? where is the flaw in my strategy ?? and so on
back to the question
Therefore is a transition word that always announces the conclusion of the entire argument. In this case, the question was not so difficult.
The second bold is just this: the overall conclusion.
Hope this helps.
I am sorry if you are offended but I never said or meant that OA is wrong or I am right.
I just explained what my thoughts on the answer were and asked for an explanation on why it is wrong/explanation for the right answer. I thought that's what forums are for.
Kindly understand that we do not always understand the passage, questions and options completely. We all here are from different regions and fields. What may be simple and easy for one might be difficult for someone else. Sometimes even having OA does not explain its justification. Thats why I use forums to get a different perspective on the answers. In this case, I simply did not understand what was D really saying and asked about it.