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').

Input: Consider Input: Sexual reproduction involves ____ individual organisms.\Question: Choose the right answer from options given a) six b) no c) two d) nine

Output: c


Input: Consider Input: Harbor porpoises live in groups averaging one to ____ individuals and are very skittish.\Question: Choose the right answer from options given a) seven b) five c) two d) three

Output: d


Input: Consider Input: Blood pressure is measured with ____ numbers.\Question: Choose the right answer from options given a) two b) one c) eight d) seven


Output: a