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, some only six and several have fewer or none.\Question: Choose the right answer from options given a) ten b) two c) eight d) no

SOLUTION: c

PROBLEM: Bacteria come in ____ basic shapes.\Question: Choose the right answer from options given a) five b) one c) three d) nine

SOLUTION: c

PROBLEM: Catalysts are specific for only ____ or two reactions.\Question: Choose the right answer from options given a) ten b) no c) two d) one

SOLUTION:
d