Let $x = - 5 , y = - 1$ And $z = - 4$

Multiple Choice

Let $x = - 5 , y = - 1$ and $z = - 4$ . Find $$K = z - x - y$$

A) $K = 0$
B) $K = - 8$
C) $K = - 10$
D) $K = 2$
E) none of these