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 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: Most birds have ____ toes, three that face forward and one rearward.\Question: Choose the right answer from options given a) two b) ten c) nine d) four

Output: d


Input: Consider Input: Nymphs feed for at least a month and develop through ____ instars before becoming adults.\Question: Choose the right answer from options given a) no b) ten c) four d) one


Output: c