Use this passage from Resak and the bear to answer the question

Resak crouched behind a tree at the forest edge. As the Night dependent he felt approaching footsteps, rambling like thunder. He readied an arrow.
What does the simile rumbling like thunder show?
How in arrow feels
The sound of a storm coming
How the forest looks
The sound of the footsteps

The simile "rambling like thunder" in this passage shows how the approaching footsteps sound. It suggests that the footsteps are loud, powerful, and potentially ominous, similar to the rumbling sound of thunder during a storm.