The first part when he says he "shall meet my fate" could allude to a choice of joining. This could allude to an acceptance of fate sort of standard and that he made his decision. Another is the last two lines when he says "Nor law... nor cheering crowds." This quotation shows that the government, the duty to his country, the men around him, and those at home cheering them on did not persuade him to fight. In the second last line this is known when he states "nor law nor duty bade me fight".
D because it includes more information than the others and is more professional
The Great Depression happened in the 1920's and 1930's due to many economic disasters such as the Market Crash in 1929 and bad mistakes by the President (Hoover)
That event was historically correct.
To incite is to to stir, encourage, or urge on; stimulate or prompt to action, so technically, the only thing that may cause that would be responsibility (option B). Although, without any proper context, I can't say it too confidently. Abandonment would make her feel helpless and confused, an interrogation seems like action has already been taken, and another protagonist would cause.....mixed feelings honestly.