Answer:
All cells hace a barrier around them that separates them from the environment and from other cell.The barrier is called the plasma membrane,or cell membrane.
I personally think that it's C because all others r present......even D......because plants like climbers do curl around a tree trunk !!!
Calls Can Get Damaged, OR Age And Die. We Wouldn't Be "Us" If We Didn't Have Cells. Hope That Helps
