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').

[EX 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
[EX A]: b

[EX Q]: Cows have four stomachs, and the first ____ yield merchantable tripe.\Question: Choose the right answer from options given a) two b) five c) zero d) three
[EX A]: d

[EX Q]: Most infants become ready to try solid foods when they are between four and ____ months of age.\Question: Choose the right answer from options given a) ten b) eight c) six d) five
[EX A]:
c