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: Chipmunks produce one or ____ litters a year.\Question: Choose the right answer from options given a) three b) one c) ten d) two

Output: d


Input: Consider Input: Scorpions also have ____ legs.\Question: Choose the right answer from options given a) eight b) zero c) nine d) ten

Output: a


Input: Consider Input: Photosynthesis occurs in ____ phases.\Question: Choose the right answer from options given a) four b) two c) nine d) five


Output: b