Answer:
C. both what elements the author uses and how those elements reveal the theme.
Explanation:
A. as many literary elements as possible, whether the author uses them or not
Incorrect, because you are trying to find the literary elements that back up your literary analysis.
B. Only what literary elements the author uses, not how those elements show theme.
Incorrect, because a literary analysis is examining all parts and thinking about how the author used it in the story or poem.