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: Cows have four stomachs, and the first ____ yield merchantable tripe.\Question: Choose the right answer from options given a) two b) five c) zero d) three

Output: d


Input: Consider Input: Japan is the second largest single country importer with about ____ per cent of world oat imports.\Question: Choose the right answer from options given a) five b) one c) four d) eight

Output: a


Input: Consider Input: Blood donors can give blood every ____ weeks, or six times a year.\Question: Choose the right answer from options given a) four b) eight c) ten d) six


Output: b