Which of the following has the consistency of an ointment?

The correct answer is emulsion because ointments are generally classified as semi-solid preparations that contain one or more active ingredients dissolved or dispersed in a suitable base. An emulsion is a mixture of two immiscible liquids, typically oil and water, where one is dispersed in the other. When formulated properly, emulsions can have a similar thick, creamy consistency to that of ointments, making them suitable for topical applications.

In contrast, suspensions consist of solid particles dispersed in a liquid, which can lead to a more pourable consistency rather than the thick, cohesive texture associated with ointments. Syrups are concentrated solutions of sugar in water or other liquid, which results in a more liquid form instead of a semi-solid. Elixirs are clear, sweetened hydroalcoholic solutions that also lack the viscous consistency characteristic of ointments. Therefore, among the options provided, an emulsion is the only one that aligns with the thick, cohesive nature of an ointment.