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: Ants have six legs, and each leg has ____ joints.\Question: Choose the right answer from options given a) nine b) zero c) two d) three

Output: d


Input: Consider Input: Some motors contain ____ gears and spin very fast, and have little if any torque.\Question: Choose the right answer from options given a) four b) three c) five d) no

Output: d


Input: Consider Input: Babies can live on milk alone for the first ____ months of life.\Question: Choose the right answer from options given a) ten b) six c) one d) five


Output: b