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]: Female cats can go into heat for the first time as early as ____ months of age.\Question: Choose the right answer from options given a) four b) zero c) five d) eight
[EX A]: c

[EX Q]: Most toddlers find it hard to sit still for more than a few seconds, let alone ____ minutes.\Question: Choose the right answer from options given a) no b) three c) four d) zero
[EX A]: b

[EX Q]: Women are ____ times more likely than men to be victims of rheumatoid arthritis.\Question: Choose the right answer from options given a) ten b) three c) zero d) seven
[EX A]:
b