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 male fish return after just ____ years.\Question: Choose the right answer from options given a) no b) two c) one d) six

Output: b


Input: Consider Input: Parliaments can last five years, often last ____ and a bit.\Question: Choose the right answer from options given a) four b) three c) five d) two

Output: a


Input: Consider Input: Crop rotation reduces residual populations of all ____ root rot organisms.\Question: Choose the right answer from options given a) four b) one c) six d) five


Output: a