English sentences can be categorized by their function.
A declarative sentence conveys a fact or opinion and concludes with a period.
An interrogative sentence poses a question and ends with a question mark.
An exclamatory sentence conveys strong emotion or surprise and concludes with an exclamation mark.
An imperative sentence issues a command, directive, request, or offers advice.
Examples include: “Sit down.” (command), “Please pass the salt.” (request), “Take care of your health.” (advice).
Consequently, the correct classification is Imperative.