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]: Every person is a carrier for about ____ rare genetic conditions.\Question: Choose the right answer from options given a) nine b) ten c) six d) three
[EX A]: b

[EX Q]: Cyclic neutropenia tends to occur every three weeks and last ____ to six days at a time.\Question: Choose the right answer from options given a) six b) four c) five d) three
[EX A]: d

[EX Q]: Elves are the first of the ____ families of fairy People.\Question: Choose the right answer from options given a) eight b) nine c) ten d) two
[EX A]:
a