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: Most children experience at least one episode by the time they are ____ years old.\Question: Choose the right answer from options given a) eight b) one c) ten d) seven

Answer: d


Question: Bytes are sets of ____ bits.\Question: Choose the right answer from options given a) four b) eight c) five d) ten

Answer: b


Question: Ice covers about ____ percent of the world's water surface.\Question: Choose the right answer from options given a) ten b) three c) six d) zero

Answer:
b