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: Chlorine has ____ naturally occurring isotopes.\Question: Choose the right answer from options given a) nine b) eight c) three d) two

Output: d


Input: Consider Input: Minks travel more than most furbearers, covering up to ____ miles a night.\Question: Choose the right answer from options given a) four b) five c) zero d) ten

Output: d


Input: Consider Input: Deer mice have ____ toes on the forefeet and five toes on the hind feet.\Question: Choose the right answer from options given a) five b) no c) seven d) four


Output: d