You are given a sentence and a question, construct 2 answer options in a specific format i.e. ['option1','option2']. The answer options have to be text spans from the given sentence. Only one among the options should be the correct answer to the given question. Note that, the correct answer to the given question will require understanding of coreference resolution. Coreference resolution is the task of clustering mentions in text that refer to the same underlying real world entities.

Sentence: Sam broke both his ankles and he's walking with crutches. But a month or so from now they should be unnecessary. Question: What should be unnecessary?
['ankles', 'crutches']

Sentence: Tom gave Ralph a lift to school so he wouldn't have to walk. Question: Who wouldn't have to walk?
['Ralph', 'Tom']

Sentence: Bill passed the half-empty plate to John because he was hungry. Question: Who was hungry?

Bill, John