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: Most people have ____ kidneys.\Question: Choose the right answer from options given a) two b) five c) seven d) six

Output: a


Input: Consider Input: Selenium is ____ times more poisonous than arsenic.\Question: Choose the right answer from options given a) one b) five c) eight d) two

Output: b


Input: Consider Input: Abdominoplasty usually takes three or ____ hours, depending on the extent of work required.\Question: Choose the right answer from options given a) ten b) six c) four d) three


Output: c