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]: Ales actively ferment with yeast for two to ____ days.\Question: Choose the right answer from options given a) five b) nine c) three d) six
[A]: c


[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]: Common goldeneyes are found in all ____ flyways.\Question: Choose the right answer from options given a) three b) five c) six d) four
[A]:
d