The correct answer is: B. Interface.
An interface is a common boundary between two systems. It is a shared boundary where two or more systems interact with each other. Interfaces can be physical, such as the surface of a computer screen, or they can be logical, such as the rules that govern how two programs communicate with each other.
Interdiction is the act of preventing something from happening. It can be used in a military context to refer to the act of stopping an enemy from attacking. It can also be used in a more general sense to refer to the act of preventing something from happening, such as preventing a crime from being committed.
Surface is the outermost layer of an object. It can be a physical surface, such as the surface of a table, or it can be a conceptual surface, such as the surface of an idea.
None of the above is not the correct answer.