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: Unequal cleavage can occur in ____ ways.\Question: Choose the right answer from options given a) two b) seven c) three d) ten

Output: a


Input: Consider Input: Most cosmetic surgery done for aging is of limited value, usually holding up five to ____ years.\Question: Choose the right answer from options given a) five b) three c) four d) seven


Output: d