Explanation:
the speaker of the poem is always the poet
The correct answer is A.
From all of the given options, the best way to depict a character is by indirect characterization.
This refers to providing information about the character's personality and traits through thoughs, actions and dialogue rather than write it down explicitely.
B - too specific for the purpose
While that would be a good topic sentence, it is far too specific for the thesis of an entire essay
Bravery is the correct answer
It would be the first one (I've had experience with that first hand)