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]: Women are ____ times as likely as men are to develop osteoporosis.\Question: Choose the right answer from options given a) zero b) four c) one d) nine
[A]: b


[Q]: Sound waves travel through the air in a similar manner, but in all ____ dimensions.\Question: Choose the right answer from options given a) three b) five c) nine d) one
[A]: a


[Q]: All imaginary numbers are complex numbers with ____ for the real part.\Question: Choose the right answer from options given a) six b) nine c) zero d) ten
[A]:
c