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: All quetzals have ____ legs.\Question: Choose the right answer from options given a) four b) zero c) eight d) ten

Answer: a


Question: All baleen whales have ____ blow holes.\Question: Choose the right answer from options given a) zero b) four c) seven d) two

Answer: d


Question: Gestation is eight months and a cow gives birth in the spring to ____ and sometimes twin calves.\Question: Choose the right answer from options given a) no b) one c) seven d) zero

Answer:
b