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: Corn borers complete at least ____ generations each summer.\Question: Choose the right answer from options given a) zero b) three c) two d) ten

SOLUTION: c

PROBLEM: Nymphs feed and mature through five instars in about ____ to eight weeks.\Question: Choose the right answer from options given a) six b) five c) seven d) zero

SOLUTION: a

PROBLEM: Some people know from the age of ____ that they want to set up their own business.\Question: Choose the right answer from options given a) five b) eight c) zero d) nine

SOLUTION:
a