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]: Today there are ____ UK hospitals doing heart transplants.\Question: Choose the right answer from options given a) three b) five c) six d) nine
[A]: d


[Q]: Women gain ____ years per child they had.\Question: Choose the right answer from options given a) ten b) nine c) four d) two
[A]: d


[Q]: Lightning is ____ times hotter than the surface of the sun . . .\Question: Choose the right answer from options given a) four b) eight c) ten d) five
[A]:
d