The motorcycles in the image are balanced thanks to the use of one of their supports. To use these supports effectively, what considerations must be taken into account regarding the pavement or terrain?

AIts horizontality, selecting an area where the pavement or terrain is as horizontal as possible.

BIts condition, it being recommended that the terrain is not very compact.

CIts inclination, favoring the balance of the motorcycle a pavement or terrain inclined to the right.