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: Most internal parasites are specific to one or ____ species.\Question: Choose the right answer from options given a) seven b) three c) two d) five

SOLUTION: c

PROBLEM: Grasshoppers are ____ inches long and can knock a man off a bicycle.\Question: Choose the right answer from options given a) six b) ten c) four d) eight

SOLUTION: a

PROBLEM: Bears often make bluff charges, sometimes to within ____ feet, without making contact.\Question: Choose the right answer from options given a) seven b) ten c) one d) six

SOLUTION:
b