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: Earthworms have ____ pairs of hearts.\Question: Choose the right answer from options given a) seven b) five c) one d) no

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: Shadows give two-dimensional representation to ____ dimensional objects.\Question: Choose the right answer from options given a) nine b) ten c) zero d) three

SOLUTION:
d