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: Giraffes sleep less than ____ hours a day.\Question: Choose the right answer from options given a) two b) six c) seven d) ten

Answer: a


Question: Microwave ovens emit ____ kinds of radiation.\Question: Choose the right answer from options given a) six b) two c) four d) eight

Answer: b


Question: Cubs start to eat bamboo around six months and are fully weaned at ____ months.\Question: Choose the right answer from options given a) nine b) three c) two d) zero

Answer:
a