At a bar, Maurice hits Deandre in the back. When Deandre turns around to confront Maurice, Deandre sees that Maurice has a knife. As Maurice stabs Deandre, Deandre takes out a gun and shoots Maurice. At trial, what argument will Deandre likely use as a defense?

Duress

Necessity

Self$-$defense

There is no defense available to Deandre because Deandre used deadly force when only nondeadly force was allowed.