What are you talking about?
Answer:
College students are helping people with disabilities. That is the main idea.
compond-complex sentence
sentence having two or more coordinate independent clauses and one or more dependent clauses.
Answer: B
Explanation:
"icy" when describing a person's attitude or personality means cold, rude, etc, but a smile is usually happy and warm.
Personally I don't think it's an oxymoron- it's definitely possible to do a rude, fake smile. But B is what an oxymoron is- two words that are opposite in meaning and shouldn't technically be used together- like "awfully good" or "bittersweet."
Do you have a picture or is it a written answer?