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: Distilled water enters the body with ____ minerals but leaves the body with minerals.\Question: Choose the right answer from options given a) zero b) no c) one d) nine

SOLUTION: b

PROBLEM: Today there are ____ basic classifications of sausage.\Question: Choose the right answer from options given a) five b) four c) six d) one

SOLUTION: a

PROBLEM: Most jet airplanes have two, ____ or four engines, depending on aircraft size.\Question: Choose the right answer from options given a) two b) three c) nine d) seven

SOLUTION:
b