The correct statements among the following are

A

Intermolecular forces in n-heptane are stronger than those in 2-methylheptane

B

Boiling point of 2,2-dimethylpentane is higher than that of 2,2-dimethylbutane

C

Both hydrogen bonding and van der Waals forces exist between molecules of 2-methylbutan-2-ol

D

In 2,2-dimethylbutane, primary, secondary and tertiary types of carbon atoms are present