Question

a___ has the same volume and shape that are always the same as the container.
liquid
gas
plasma
solid

Explanation:

A solid has a definite shape and volume. It retains its shape regardless of the container it is in. In contrast, a liquid has a definite volume but takes the shape of its container. A gas has neither a definite shape nor volume, and plasma (a state of matter similar to gas but with charged particles) also doesn't have a definite shape and volume like a solid does.

Answer:

Solid