They would look in the index for mentions of the subject.
Answer: C. She is curious and independent.
Based on this description, Mary seems to be a curious girl, as she wants to find out the source of the crying noise. She also appears to be independent because she is making decisions that are different from those that are suggested to her.
We cannot assume she is disobedient and rebellious because we do not know whether looking for the source of the noise was prohibited. Perhaps she was told to ignore it as an advice, not as an order. She is also not afraid as she goes investigating on her own. Finally, there is no indication of the noise being at night, or of it having any impact on her sleep.
Kennedy claims in this excerpt is that basically nothing is impossible. The things that are considered extremely difficult to reach are possible if you are willing to do them. The capability or the limits of a person are only established by him or herself.
The creepers in lord of the flies are actually vines that grow all over the island, which symbolize evil.
Such as when the pig is found entangled in creepers, it symbolizes how the boys will also become entangled in evil as they lose civility.
