Modern$-$day coffee shops offer a wide array of blended coffee drinks. However, users only interface with the drink creation process at the beginning $($giving the order$)$ and at the end $($receiving the drink for consumption$).$ The details of where the ingredients come from, how and in what order they are combined, how much they cost, etc., are largely hidden from the user.

Which security principle is best exemplified by this coffee$-$creation process?

Group of answer choices

Fail$-$safe secure

Encapsulation

Separation of duty

Open design