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: 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: Youth unemployment is ____ times the adult level.\Question: Choose the right answer from options given a) one b) three c) seven d) no

SOLUTION: b

PROBLEM: All societies have ____ realms that are autonomous, but organically related with each other.\Question: Choose the right answer from options given a) zero b) three c) ten d) two

SOLUTION:
b