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: Trinity comes from tri-unity which means ____ in one.\Question: Choose the right answer from options given a) four b) three c) eight d) zero

SOLUTION: b

PROBLEM: Human malaria is caused by ____ species of Plasmodium . .\Question: Choose the right answer from options given a) six b) ten c) seven d) four

SOLUTION: d

PROBLEM: Most cats have ____ toes on each front paw, but only four toes on each back paw.\Question: Choose the right answer from options given a) five b) two c) nine d) four

SOLUTION:
a