Select three functions of the cell membrane.
 A 
 It sends and receives messages to maintain homeostasis.
 B 
 It prevents anything harmful from entering the cell.
 C 
 It creates separation between the cell and the outside.
 D 
 It changes lipids into usable proteins for the cell.
 E 
 It controls the movement of molecules in and out of the cell.
 F 
 It holds all of the genetic material for the cell.