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: Most resistors have three coloured bands close together at one end and ____ single band at the other.\Question: Choose the right answer from options given a) two b) one c) ten d) five

Output: b


Input: Consider Input: Genes control the cell cycle in ____ very general ways.\Question: Choose the right answer from options given a) three b) two c) six d) zero


Output: b