From the following which one is not an example ofhydrocarbon ointment bases A. Petrolatum B. White petrolatum C. White ointment OD. Lanolin

D. Lanolin<br /><br />Lanolin is not an example of a hydrocarbon ointment base. It is a type of oil derived from the wool of sheep and is commonly used in cosmetics and pharmaceuticals. While petrolatum, white petrolatum, and white ointment are all examples of hydrocarbon ointment bases, lanolin is a different type of substance.