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: Some olive trees live to be ____ thousand years old.\Question: Choose the right answer from options given a) ten b) zero c) two d) seven

Output: c


Input: Consider Input: Lizards generally have ____ legs and movable eyelids.\Question: Choose the right answer from options given a) four b) two c) five d) zero

Output: a


Input: Consider Input: Psoriasis means that the skin changes ____ times faster than normal.\Question: Choose the right answer from options given a) six b) eight c) seven d) nine


Output: c