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: Beavers live in families that include an adult pair and ____ to three years worth of offspring.\Question: Choose the right answer from options given a) no b) one c) four d) ten

Output: b

Input: Consider Input: Diarrheal disease kills ____ million children every year.\Question: Choose the right answer from options given a) three b) no c) four d) ten

Output: a

Input: Consider Input: Children also require ____ further amino acids, histidine and arginine.\Question: Choose the right answer from options given a) nine b) four c) two d) five
Output: c