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: Studies show that childhood obesity is epidemic and that ____ in five children is overweight.\Question: Choose the right answer from options given a) one b) two c) nine d) ten

SOLUTION: a

PROBLEM: Some experts believe whining peaks around the ages of ____ or four.\Question: Choose the right answer from options given a) three b) no c) four d) seven

SOLUTION: a

PROBLEM: Cancer strikes one in three people and kills ____ in four.\Question: Choose the right answer from options given a) one b) eight c) two d) zero

SOLUTION:
a