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: Calves can swim ____ days after they are born.\Question: Choose the right answer from options given a) ten b) two c) zero d) one

Output: b


Input: Consider Input: Springtails reproduce quickly usually within three to ____ weeks.\Question: Choose the right answer from options given a) five b) six c) nine d) three

Output: a


Input: Consider Input: Buds are pink as the ____ sepals are pink and are lost when the flower blooms .\Question: Choose the right answer from options given a) four b) one c) two d) three


Output: a