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').
--------
Question: Poisons come in ____ different forms .\Question: Choose the right answer from options given a) four b) no c) five d) ten

Answer: a


Question: Corn borers complete at least ____ generations each summer.\Question: Choose the right answer from options given a) zero b) three c) two d) ten

Answer: c


Question: All amphibians have ____ legs with the exception of caecilians, which are limbless.\Question: Choose the right answer from options given a) six b) four c) one d) nine

Answer:
b