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 spiders have ____ eyes and eight legs.\Question: Choose the right answer from options given a) eight b) five c) no d) three

SOLUTION: a

PROBLEM: Hybridization is the practice of ____ different species interbreeding.\Question: Choose the right answer from options given a) no b) one c) two d) three

SOLUTION: c

PROBLEM: Adrenaline stimulates all ____ kinds of receptor and has lots of side effects.\Question: Choose the right answer from options given a) eight b) zero c) ten d) three

SOLUTION:
d