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: Lions have ____ distinct vocalizations including roars, grunts and growls.\Question: Choose the right answer from options given a) eight b) six c) four d) nine

A: d
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Q: Ground beef can last up to four months, and chicken parts can stay good for ____ months.\Question: Choose the right answer from options given a) ten b) no c) nine d) zero

A: c
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Q: Trees can also be air layered but air layering usually takes four to ____ months to be successful.\Question: Choose the right answer from options given a) five b) nine c) eight d) six

A:
d
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