The apology includes a comparison of socrates to a gadfly. this is a good comparison because
a. socrates had so many followers that they were like flies
b. socrates was about to be killed
c. socrates was lowly and commonplace
d. socrates was persistent and annoying

The is D, Socrates was persistent and annoying.

b. his ability to use formal language to stress strong feelings

in june, we will have been married for eighteen months. (i am assuming this is what you want? the sentence, as you have presented it, is grammatically incorrect--   you want it corrected, yes? )