Answer:
compound-complex
Explanation:
"After we left practice" is a dependent clause that isn't a full sentence on its own, and "I went swimming" and "Mark ran around the track" are two independent clauses linked by a conjunction
The correct answer is C) Just because she and Gretchen are rivals does not mean they can't be friends. Because in the end, they look at each other and smile, the way people who could get along do.