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]: Cows breed at ____ years, bulls at four.\Question: Choose the right answer from options given a) two b) three c) seven d) one
[A]: b


[Q]: Most families have between ____ and eight children.\Question: Choose the right answer from options given a) four b) one c) five d) three
[A]: c


[Q]: Immature house centipedes start with ____ body segments.\Question: Choose the right answer from options given a) four b) ten c) five d) two
[A]:
a