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: Brain death occurs in just four to ____ minutes unless the heart rhythm is restored.\Question: Choose the right answer from options given a) ten b) three c) six d) nine

SOLUTION: c

PROBLEM: Indian reservations are part of five of the nation's ____ poorest counties.\Question: Choose the right answer from options given a) seven b) nine c) ten d) two

SOLUTION: c

PROBLEM: Grasshoppers have ____ claws at the end of each leg.\Question: Choose the right answer from options given a) eight b) one c) four d) two

SOLUTION:
d