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').

[Q]: Mammals have only ____ sets of teeth.\Question: Choose the right answer from options given a) six b) five c) seven d) two
[A]: d


[Q]: Poodles have ____ legs.\Question: Choose the right answer from options given a) one b) four c) six d) nine
[A]: b


[Q]: Winter lasts about ____ months out of the year.\Question: Choose the right answer from options given a) nine b) four c) six d) three
[A]:
a