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: Quadrupeds are animals with ____ feet, such as cows.\Question: Choose the right answer from options given a) four b) six c) ten d) two

SOLUTION: a

PROBLEM: Psychiatrists say that one in ____ people are mentally ill.\Question: Choose the right answer from options given a) one b) two c) four d) nine

SOLUTION: c

PROBLEM: Infants weigh on average one or ____ pounds at birth.\Question: Choose the right answer from options given a) no b) four c) nine d) two

SOLUTION:
d