The correct answer is C: Each stanza begins with a question and ends with an answer and explanation.
This belongs to the poem "Ah, Are You Digging on My Grave" written by Thomas Hardy. The first three stanzas show a similar pattern. A variation of the question "Are you digging on my grave" is presented at the beginning of each stanza. The first three stanzas, as well, end with an answer and explanation to that question.