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: Vampires generally are male, and rabies is ____ times more frequent in men than in women.\Question: Choose the right answer from options given a) no b) two c) zero d) seven

SOLUTION: d

PROBLEM: Infants can tell their mothers from other mothers in ____ days.\Question: Choose the right answer from options given a) no b) zero c) five d) three

SOLUTION: d

PROBLEM: Nurses are members of a global community with ____ borders or boundaries.\Question: Choose the right answer from options given a) nine b) no c) five d) zero

SOLUTION:
b