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: Millipedes have ____ pairs of legs on each body segment.\Question: Choose the right answer from options given a) seven b) ten c) six d) two

Output: 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: Arachnids always have ____ pairs of legs.\Question: Choose the right answer from options given a) nine b) two c) four d) zero


Output: c