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]: Avian kidneys have ____ kinds of nephrons.\Question: Choose the right answer from options given a) four b) eight c) no d) two
[EX A]: d

[EX Q]: Gasoline is ____ times as expensive as in the United States.\Question: Choose the right answer from options given a) two b) four c) three d) ten
[EX A]: c

[EX Q]: Beans provide ____ times more fiber than whole wheat bread and more fat-free protein than lean meat.\Question: Choose the right answer from options given a) eight b) two c) ten d) five
[EX A]:
d