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: Children of alcoholics are ____ times more likely than other people to become alcoholics themselves.\Question: Choose the right answer from options given a) zero b) four c) nine d) two

SOLUTION: b

PROBLEM: Conflict occurs between when ____ people have a car accident.\Question: Choose the right answer from options given a) no b) eight c) two d) nine

SOLUTION: c

PROBLEM: Food chains vary in length from three to ____ or more levels.\Question: Choose the right answer from options given a) five b) six c) eight d) no

SOLUTION:
b