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: Nymphs feed and mature through ____ instars in about six to eight weeks.\Question: Choose the right answer from options given a) four b) eight c) five d) no

Output: c


Input: Consider Input: Chinese cuisine has ____ tolerance for animal rights groups.\Question: Choose the right answer from options given a) ten b) zero c) four d) no

Output: b


Input: Consider Input: Fungi form ____ key mutualistic symbiotic associations.\Question: Choose the right answer from options given a) seven b) two c) five d) zero


Output: b