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]: Illiteracy is ____ percent higher among women than men.\Question: Choose the right answer from options given a) seven b) six c) zero d) five
[A]: a


[Q]: Most women notice their breasts become fuller and firmer within the first six to ____ weeks.\Question: Choose the right answer from options given a) four b) eight c) zero d) ten
[A]: b


[Q]: Flake graphite can be ____ times the price of amorphous.\Question: Choose the right answer from options given a) zero b) eight c) ten d) four
[A]:
d