The heat in the Earth's interior comes from the mantle
According to the sentences shared from The Destructors, the word that best describes Trevor is <u>peculiar</u>.
From those sentences we can't tell that Trevor's silence is because he is cautious or introspective. Nothing in those lines tells us any other thing for us to understand that he is one of those two things.
On the other hand, we can know from the sentence "When he said 'Trevor' it was a statement of a fact, not as it would have been with the others a statement of shame or defiance" that he didn't mean to be threatening, so the choice left is C.
Peculiar, as an adjective, means that someone clearly distinguishes from the rest for some personal characteristic. Trevor's attitude is clearly different from the rest of the gang and it is something that distinguishes him.
The correct answer should be letter (<span>C.) </span><span>mammals. Subject is the main topic that is being discussed in the sentence. All the other choices provided above are three types of mammals. They are words that functions as adjectives which modify the noun "mammal".</span>
