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: Nematodes occur in ____ general forms.\Question: Choose the right answer from options given a) nine b) two c) seven d) ten

Output: b


Input: Consider Input: Many tractors have ____ wheel drive to get extra grip on the hills and in wet conditions.\Question: Choose the right answer from options given a) four b) seven c) five d) two

Output: a


Input: Consider Input: Marriage is the holy reality of ____ becoming one.\Question: Choose the right answer from options given a) one b) zero c) seven d) two


Output: d