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: Some European countries require ____ years of education.\Question: Choose the right answer from options given a) no b) nine c) six d) three

SOLUTION: d

PROBLEM: Government is divided into ____ basic functions.\Question: Choose the right answer from options given a) three b) no c) two d) four

SOLUTION: c

PROBLEM: Springtails reproduce quickly usually within three to ____ weeks.\Question: Choose the right answer from options given a) five b) six c) nine d) three

SOLUTION:
a