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]: Cows can be up to ____ times more active than normal while in heat.\Question: Choose the right answer from options given a) eight b) nine c) two d) six
[EX A]: a

[EX Q]: Chemistry has ____ less important names.\Question: Choose the right answer from options given a) ten b) no c) eight d) nine
[EX A]: b

[EX Q]: Macular degeneration is a condition that affects ____ out of every three seniors.\Question: Choose the right answer from options given a) three b) four c) one d) ten
[EX A]:
c