Why is carbon found in the backbone of most large organic molecules? You may select more than one correct answer.

a. Carbon makes 4 bonds with other atoms, creating a geometry that allows for large molecules.

b. Carbon is very electronegative and makes hydrogen bonds with other atoms, creating a geometry that allows for large molecules.

c. Carbon makes shares 4 pairs of electrons with other atoms, creating a geometry that allows for large molecules.

d. Carbon forms ionic bonds with other atoms, creating a geometry that allows for large molecules.