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: Taste is comprised of ____ primary senses detected on the palate.\Question: Choose the right answer from options given a) two b) seven c) five d) ten

A: c
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Q: Many comets have ____ tails.\Question: Choose the right answer from options given a) two b) six c) three d) one

A: a
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Q: Whales are at the top of the food chain and have ____ predators other than humans.\Question: Choose the right answer from options given a) no b) eight c) one d) ten

A:
a
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