The most commonly used method of moving people and goods in central africa is by

The most commonly used method of moving people and goods in Central Africa is by vehicles that can passed through roads. Most of the interior parts of Central Africa are wet terrain. This is the reason why roads are not paved in most of its areas because during wet season some roads become impassable and muddy. This then complicates transportation for many dwellers in the land.

Is there a picture of the diagram?

D. a mountain abd are made by volcanos and tectonic plates