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: Cats have ____ sets of vocal cords.\Question: Choose the right answer from options given a) zero b) nine c) two d) three

SOLUTION: c

PROBLEM: Microwave ovens emit ____ kinds of radiation.\Question: Choose the right answer from options given a) six b) two c) four d) eight

SOLUTION: b

PROBLEM: Mexican masks represent the blending of ____ cultures.\Question: Choose the right answer from options given a) two b) ten c) seven d) no

SOLUTION:
a