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]: Midrange drivers are used in multi-way speakers with ____ or more driver sizes.\Question: Choose the right answer from options given a) one b) five c) four d) three
[A]: d


[Q]: Calves can swim ____ days after they are born.\Question: Choose the right answer from options given a) ten b) two c) zero d) one
[A]: b


[Q]: Tigers are great swimmers, and they can swim three or ____ miles easily.\Question: Choose the right answer from options given a) eight b) four c) six d) no
[A]:
b