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: Copper is ____ times higher in dog liver than in human liver.\Question: Choose the right answer from options given a) three b) ten c) six d) one

SOLUTION: b

PROBLEM: Most toddlers find it hard to sit still for more than a few seconds, let alone ____ minutes.\Question: Choose the right answer from options given a) no b) three c) four d) zero

SOLUTION: b

PROBLEM: Deer are born with ____ baby teeth and develop baby incisors and premolars in their first months.\Question: Choose the right answer from options given a) three b) four c) two d) no

SOLUTION:
b