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: Corms are undifferentiated, uniform, and contain ____ rings when cut apart.\Question: Choose the right answer from options given a) no b) three c) one d) zero

Output: a


Input: Consider Input: Most people have ____ kidneys.\Question: Choose the right answer from options given a) two b) five c) seven d) six

Output: a


Input: Consider Input: Most babies peak at about ____ weeks of age, and then get better.\Question: Choose the right answer from options given a) one b) six c) five d) nine


Output: b