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]: Uncontrolled diabetes can increase risk by up to ____ times.\Question: Choose the right answer from options given a) five b) four c) seven d) eight
[EX A]: b

[EX Q]: Physical abuse occurs in approximately one out of every ____ dating relationships.\Question: Choose the right answer from options given a) six b) four c) one d) ten
[EX A]: b

[EX Q]: American men click on Internet sex sites ____ times more often than women do.\Question: Choose the right answer from options given a) six b) no c) ten d) five
[EX A]:
a