Which underlined words form a dependent clause?

Kerry rode her bike around the lake three times.

The children squirmed and danced in front of the photographer.

Although the rain poured down, the Eagles and Panthers continued their soccer game.

The ancient tree dwarfed all the others in the forest.

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).