Given a sentence with a missing word, pick the answer option that best fills out the missing word in the sentence. Indicate each answer with its index ('a', 'b', 'c', 'd').

Example Input: Firebrat eggs hatch in about ____ weeks.\Question: Choose the right answer from options given a) ten b) one c) two d) no
Example Output: c

Example Input: Some infected people have ____ symptoms at all.\Question: Choose the right answer from options given a) four b) eight c) no d) five
Example Output: c

Example Input: Some species can make dives over ____ hundred feet deep.\Question: Choose the right answer from options given a) six b) eight c) two d) one
Example Output:
b