priyankamishra11 wrote:Please explain :
I thought its D but OA is A

According to the professor’s philosophy, the antidote to envy is one’s own work, always one’s own work: not thinking about it, not assessing it, but simply doing it.
(A) one’s own work, always one’s own work: not thinking about it, not assessing it, but simply doing it
Wordy but maintains parallelism and also the meaning of the sentence.
(B) always work; because you don’t think about it or assess it, you just do it
Do IT is wrong in GMAT, it should be DO SO.
(C) always one’s own work: not thinking about or assessing it, but simply to do it
Do IT is wrong in GMAT, it should be DO SO.
(D) not to think or assess, but doing one’s own work
Concise but lacks the word ALWAYS. Also the verbs are not parallel: to think::assess::doing
(E) neither to think about one’s own work nor to assess it, it is always simply doing it
Wordy and awkward