Question

multiple-choice question salar de uyuni is the worlds largest... beach ocean salt flat mountain

Explanation:

Salar de Uyuni, located in Bolivia, is well - known as the world's largest salt flat. A beach is a coastal landform, an ocean is a large body of salt water, and a mountain is a landform with high elevation. None of these match the nature of Salar de Uyuni as well as "salt flat" does.

Answer:

C. salt flat