A
Below is a question with multiple-choice answers. Choose the correct option based on your reasoning.

### Question:
An earthquake in the Earth's crust under the ocean releases sound waves. Which statement accurately describes how the sound waves spread?

### Choices:
A. They spread in all directions away from their source.
B. They remain trapped near the source by water pressure.
C. They travel mostly horizontally along the ocean floor.
D. They travel mostly upward toward the surface of the water.

### Answer:
