Why do the major rivers in Southeast Asia run from north to south?

Most major rivers in Southeast Asia seem to flow in the same direction. By studying the physical geography of this region, we can tell that these rivers flow from north to south because the major mountain ranges run from north to south. The rivers formed naturally between them in valleys.

Explanation:

a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.

its c not d   tell me if that´s correct