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: Pupae usually transform into adults ____ to three days later.\Question: Choose the right answer from options given a) one b) two c) no d) eight

A: b
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Q: Most linguists organize the African languages into ____ major language families.\Question: Choose the right answer from options given a) three b) four c) eight d) no

A: b
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Q: Fringed campion occurs in ____ distinct geographic areas.\Question: Choose the right answer from options given a) eight b) two c) zero d) seven

A:
b
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