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').

Q: Serial transfer is the sequential transmission of the ____ bit-voltages that constitute a byte.\Question: Choose the right answer from options given a) ten b) eight c) two d) four

A: b
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Q: Water is present in all ____ phases in Earth s atmosphere.\Question: Choose the right answer from options given a) six b) nine c) two d) three

A: d
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Q: Japan consumes almost as much paper as China, a country with nearly ____ times as many people.\Question: Choose the right answer from options given a) three b) seven c) no d) ten

A:
d
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