The diffusion of water through a cell membrane to reach dynamic equilibrium.
It can't be as you should know what sapling it is ,if it is a herb sapling then it will a herb sapling and vicesa versa.
The answer would be both A and B (: Which is C.
They probably chose this over black since black absorbs he most heat, and if something like a power outage occurs during the hot summer, ya want to stay as cool as possible...this is just my idea.
