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]: Turkey also has ____ inland drainage basins.\Question: Choose the right answer from options given a) zero b) two c) eight d) nine
[A]: b


[Q]: Western culture offers only ____ genders, man or woman.\Question: Choose the right answer from options given a) three b) two c) one d) four
[A]: b


[Q]: Heart attacks strike one in ____ people.\Question: Choose the right answer from options given a) zero b) eight c) five d) three
[A]:
d