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: Food chains consist of ____ trophic levels.\Question: Choose the right answer from options given a) ten b) three c) one d) four

SOLUTION: d

PROBLEM: Reality is more than what can be perceived with the ____ senses.\Question: Choose the right answer from options given a) five b) four c) ten d) one

SOLUTION: a

PROBLEM: Flies are insects with ____ wings.\Question: Choose the right answer from options given a) six b) seven c) no d) two

SOLUTION:
d