how does carbon achieve a stable electron configuration and fulfill the octet rule?\nforming ionic…

Brief Explanations:

Carbon has 4 valence electrons. To achieve a stable electron - configuration and fulfill the octet rule (8 valence electrons), it shares electrons with other atoms. Ionic bonds involve transfer of electrons and carbon is not likely to transfer enough electrons to achieve octet. Hydrogen bonds are intermolecular forces, not a way for carbon to achieve octet. Covalent bonds involve sharing of electrons, which allows carbon to complete its octet.

Answer:

forming covalent bonds