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: Elephants rise ____ inches when they inhale.\Question: Choose the right answer from options given a) two b) five c) one d) eight

Answer: a


Question: Parliamentary democracy is less than ____ years old in Nigeria.\Question: Choose the right answer from options given a) eight b) two c) nine d) three

Answer: b


Question: Orangutans are the most at risk of the world's ____ species of apes.\Question: Choose the right answer from options given a) six b) five c) nine d) ten

Answer:
a