The correct options are
A The uplands consists of old rocks, eroded old mountains, hills, and high plateaus.
B Parts of this region are forested.
D Most of the land is rocky and has poor soil which is not suitable for farming.
The Central Uplands consists of old rocks, eroded mountains, hills, and high plateaus. The average height is no more than 600 metres. Most of the land is rocky, has poor soil which is not suitable for farming. Some parts of this region are forested. River valleys provide the best farmlands.