Solve the Problem $f(0)$ For $$f(x)=\left\{\begin{array}{cc}X-6 & \text { if } x<6 \\7-x & \text { if } x \geq 6\end{array}\right.$$

Solve the problem.
-Find $f(0)$ for
$$f(x) =\left\{\begin{array}{cc}X-6 & \text { if } x<6 \\7-x & \text { if } x \geq 6\end{array}\right.$$

A) 7
B) 1
C) 0
D) -6