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: Ruminants have an even number of toes on each foot and a stomach with either three or ____ chambers.\Question: Choose the right answer from options given a) four b) two c) seven d) five

Answer: a


Question: Butterflies have ____ stages in their life cycle.\Question: Choose the right answer from options given a) two b) four c) no d) eight

Answer: b


Question: Grapefruit are about ____ quarters liquid, so the heavier the fruit, the more juice it contains.\Question: Choose the right answer from options given a) two b) ten c) eight d) three

Answer:
d