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: Prairie voles look like rodents with small rounded bodies, ____ short legs and a short tail.\Question: Choose the right answer from options given a) two b) nine c) four d) zero

Output: c


Input: Consider Input: Chemical interactions are essentially electron interactions of ____ atoms.\Question: Choose the right answer from options given a) six b) no c) ten d) two

Output: d


Input: Consider Input: Moons have a bell size of around ____ to eighteen inches.\Question: Choose the right answer from options given a) six b) two c) one d) zero


Output: a