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: Perennial grass takes three to ____ years before it is mature enough to produce adequate seed.\Question: Choose the right answer from options given a) five b) seven c) six d) four

SOLUTION: a

PROBLEM: Most women notice their breasts become fuller and firmer within the first six to ____ weeks.\Question: Choose the right answer from options given a) four b) eight c) zero d) ten

SOLUTION: b

PROBLEM: Caffeine is a powerful sleep inhibitor that stays in the bloodstream for up to ____ hours.\Question: Choose the right answer from options given a) six b) four c) no d) five

SOLUTION:
a