human
Question: Which of the following is a central role of carbon in the chemistry of living organisms?

Choices:
A) Carbon can only bond with other carbon atoms.
B) Carbon is a solvent that breaks chemical bonds.
C) Carbon readily forms ionic bonds that separate easily.
D) Carbon can form many types of molecules with covalent bonds.
gpt
The correct answer is 3: Carbon can form many types of molecules with covalent bonds..