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: Wolverines reproduce every ____ or three years.\Question: Choose the right answer from options given a) two b) three c) one d) four

SOLUTION: a

PROBLEM: Spores have ____ combinations of sexes.\Question: Choose the right answer from options given a) four b) five c) seven d) three

SOLUTION: a

PROBLEM: Worker bees have ____ pairs of wax glands on the underside of their abdomens.\Question: Choose the right answer from options given a) no b) two c) nine d) four

SOLUTION:
d