He wants to fight them for crashing the party.
The answer is C. The family can grow food for themselves and the animals.
The whole sonnet is, in my opinion, about the fact that this woman does not love the poet - she is hiding her feelings well, and thinking about somebody else. So, the correct answer could be either C or D.
Answer: His
Explanation: His, brother is a singular indefinite pronoun; therefore, the singular form his agrees with the antecedent