Alcohols Have Higher Boiling Points Than Alkanes of Similar Molecular

Alcohols have higher boiling points than alkanes of similar molecular mass because:

A) Alcohols are ionic compounds and alkanes are covalent compounds.
B) Alkane molecules are polar and alcohol molecules are not.
C) Hydrogen bonding occurs between alcohol molecules but not between alkane molecules.
D) Alcohols are acidic and alkanes are not.