A test response.
In the other options, slang could be used for literary effect.
C. Passively digest the passage without effort. This is because it’s not critical reading if you don’t put in effort to interpret what happened.
There is only one sentence among these that contains a dependent clause, and that is the third option - Although the rain poured down, the Eagles and Panthers continued their soccer game.
The remaining sentences are all simple, meaning they contain only one independent clause (except for sentence 2, which is compound, meaning it has 2 independent clauses).