TASK DEFINITION: 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').
PROBLEM: Peonies grow from two to ____ feet in height.\Question: Choose the right answer from options given a) five b) zero c) three d) four

SOLUTION: d

PROBLEM: Sexual maturity is reached at about ____ years of age.\Question: Choose the right answer from options given a) five b) ten c) no d) two

SOLUTION: d

PROBLEM: Activated carbon is used every ____ weeks for a period of a few days and is then removed.\Question: Choose the right answer from options given a) three b) seven c) four d) two

SOLUTION:
a