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: National immunization vaccinates all children under ____ against polio.\Question: Choose the right answer from options given a) zero b) four c) ten d) five

Answer: b


Question: Manatees swim two to ____ miles per hour.\Question: Choose the right answer from options given a) no b) six c) five d) zero

Answer: b


Question: Superficial hemangiomas are the most common of the ____ types.\Question: Choose the right answer from options given a) ten b) three c) zero d) four

Answer:
b