Final answer:
In the Penelope's archery contest in 'The Odyssey,' Odysseus must fire his arrow through twelve axes. THe correct answer is C) twelve.
Step-by-step explanation:
In the context of the question, the reference to Penelope and Odysseus suggests that the question is based on the epic poem 'The Odyssey' by Homer, which falls under the subject of English.
In this poem, Penelope announces that she will marry the suitor who can string Odysseus' bow and shoot an arrow through twelve axes.
Therefore, the correct answer to the question is C) twelve.