Concept:A plateau broken by river erosion into deep, narrow valleys is called a dissected plateau.
Explanation:Rivers flowing across a plateau continuously cut downwards over a long period of time.
This erosion creates deep, narrow valleys and gorges within the plateau.
As a result, the once-flat surface becomes divided into rugged, isolated sections.
Such a broken and eroded plateau is known as a dissected plateau.
The other options do not fit this description: an intermont plateau lies between mountain ranges, while volcanic and lava plateaus are formed by lava accumulation rather than river erosion.
Answer:C. dissected plateau