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: Women live an average of five to ____ years longer then men.\Question: Choose the right answer from options given a) one b) five c) ten d) seven

Output: d


Input: Consider Input: Most bacteria have one or ____ circular chromosomes.\Question: Choose the right answer from options given a) ten b) eight c) six d) two

Output: d


Input: Consider Input: Female manatees deliver only one calf every three to ____ years.\Question: Choose the right answer from options given a) no b) five c) one d) three


Output: b