Answer: C
Explanation:
All living organisms contain carbon atoms.Carbon atoms can bond with many other kinds of atoms to form very stable molecules. This is an important characteristic of carbon therefore it is present in many living organisms. It is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms .This is due to the fact that the carbon atom is just the right size to fit in snuggly as part of very large molecules.
So that the plant doesn't become extinct