Why is carbon said to provide a "backbone" in many

Question

molecules? (1 point)
Carbon atoms have long narrow shapes, allowing many
other atoms to attach to them.
Carbon atoms can form chains and branches with each
other, and other atoms can attach to these.
Carbon atoms have full shells of electrons, allowing
electrical signals to pass through them easily.
Carbon atoms have half-full shells of electrons, allowing
electrical signals to pass through them easily.

Answer 1

Carbon is said to provide a "backbone" in many molecules because carbon atoms can form chains and branches with each other, and other atoms can attach to these. This ability to create stable covalent bonds with other carbon atoms and a variety of other elements allows for the formation of complex and diverse organic molecules.