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]: Vision disorders affect one in every ____ school-age children.\Question: Choose the right answer from options given a) five b) four c) nine d) one
[EX A]: b

[EX Q]: Toucanets encompass ____ genera.\Question: Choose the right answer from options given a) seven b) six c) two d) one
[EX A]: c

[EX Q]: Banks hold ____ excess reserves and the public holds no currency.\Question: Choose the right answer from options given a) two b) seven c) ten d) no
[EX A]:
d