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]: Redwoods reproduce ____ ways.\Question: Choose the right answer from options given a) zero b) two c) six d) nine
[A]: b


[Q]: Unsafe acts cause ____ times as many accidents as unsafe conditions.\Question: Choose the right answer from options given a) no b) eight c) one d) four
[A]: d


[Q]: Earth completes a single total rotation every twenty ____ hours.\Question: Choose the right answer from options given a) four b) zero c) two d) seven
[A]:
a