Consider the intermolecular forces present in a pure sample of each of the following compounds: CH₃CH₂CH₂Cl and CH₃CH₂CH₂OH. Identify the intermolecular forces that these compounds have in common.
A) Dispersion forces only.
B) Dipole-dipole forces only.
C) Dispersion forces, dipole-dipole forces, and hydrogen bonding.
D) Dispersion forces and dipole-dipole forces.