Answer: B. Salt and rust are corrosives that have damaging effects on a city’s infrastructure.
Explanation: in a text, a main idea is important information that tells more about the overall idea of a paragraph or section of a text. In the given excerpt from "The City Without Us” by Alan Weisman we can see the description of how the salt used on the roadways on winter, is very corrosive because it eats steel, and it also says that with no people, there won't be salt, but there will be rust which is also corrosive. According to this information, the main idea of the paragraph is best represented by option B: Salt and rust are corrosives that have damaging effects on a city’s infrastructure.
practical
Even though Grendel seems as though he's being harsh by eating the exile, he is actually being practical. He says he tries to do things that are more considerate like befriending or ignoring him. However, since the exiles were treacherous, eating them is the most practical solution.
I would say this character is round (option C) because "his personality, his background, motives and some other features are delineated by the author". He presents a complex personality like real people. It seems that he has different "layers" with contradictory situations and some transformations. However, his personality seems inconsistent. For example, He bits Aileen, then he treats her well because he knows the truth but he ends up killing her dog.
They both had enemies that brought negative thinking
they both had negative thoughts
either of these should suffice
