Hydrogen bonding is usually found in situations represented by D-H—A where both the donor atom, D, and the acceptor atom, A, are one of the highly electronegative elements O, N, or F. Hydrogen bonding is not expected to occur in compounds in which all of the H atoms are covalently bonded to C atoms, even when an acceptor atom is present in the molecule. Choose all that apply. In which of the following pure substances would hydrogen bonding be expected to occur?