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

Answer: b


Question: Many tortoises can retract their head, their ____ limbs and tail into the shell for protection.\Question: Choose the right answer from options given a) no b) one c) two d) four

Answer: d


Question: French toast has double the fat and waffles have ____ times the fat found in pancakes.\Question: Choose the right answer from options given a) no b) one c) four d) eight

Answer:
c