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.

Example Input: Sentence: The archaeologists have concluded that neanderthals lived in Laputa 20,000 years ago. They hunted for evidence on the river banks. Question: Who hunted for evidence?
Example Output: ['neanderthals', 'archaeologists']

Example Input: Sentence: Jim signaled the barman and gestured toward his bathroom key. Question: Whose bathroom key?
Example Output: ["Jim's", " barman's"]

Example Input: Sentence: The doctor informed Kate that she had cancer and presented several options for future treatment. Question: Who had cancer?
Example Output:
Kate, doctor