The correct answer is e) nonpolar covalent bond.
When a carbon atom bonds with a hydrogen atom, they share electrons in such a way that results in a nonpolar covalent bond. In this type of bond, the electrons are shared more or less equally because the difference in electronegativity between carbon and hydrogen is minimal. This sharing allows both atoms to achieve a stable electronic configuration, fulfilling the octet rule for carbon while hydrogen achieves a full outer shell through sharing.
To elaborate, carbon has four valence electrons and needs four more to complete its outer shell, while hydrogen has one valence electron and needs one more. So when they bond, they share electrons, effectively forming aone molecule that is nonpolar due to the equal distribution of electron density.