I took the test the answer is C.
They lock themselves up in the prince's<span> abbey with food & drink so they </span>can<span> survive</span>
It's A. The subject is concern for the continued existence of the panther (the concern is what the sentence is about), and the phrase 'Because the panther is endangered already' comes before it.
The answer is C. this can be found in context clues for “literal” means to directly state.