Which sentence is a compound sentence?

Question

Before going to bed I stared out the window.

I tried taking a shower to warm up, but the shower water was freezing too.

When I got downstairs, my mom told me the snow was up to the top of the door.

I shrugged it off and went to sleep.

Answer 1

The compound sentence from the options provided is:

"I tried taking a shower to warm up, but the shower water was freezing too."

This sentence contains two independent clauses ("I tried taking a shower to warm up" and "the shower water was freezing too") connected by the coordinating conjunction "but."