Read the following sentences from "The Destructors."
The new recruit had been with the gang since the beginning of the summer holidays, and there were possibilities about his brooding silence that all recognized. He never wasted a word even to tell his name until that was required of him by the rules. When he said "Trevor" it was statement of fact, not as it would have been with the others a statement of shame or defiance.
Which word best describes Trevor?
A. cautious
B. introspective
C. peculiar
D. threatening