Cho hàm số y = f(x) =

Câu hỏi: Cho hàm số y = f(x) =$\left\{\begin{array}{l}x-12 khi x \ge 2\\ -x - 7 khi x <2\end{array}\right.$ 

A. f(3) = 1; f(0) = -7; f(2) = $\frac{-1}{2}$; f(-2) = -5

B. f(3) = -10; f(0) = -7; f(2) = -9; f(-2) = -5

C. f(3) = 1; f(0) = -7; f(2) = $\frac{1}{2}$; f(-2) = -5

D. f(3) = 1; f(0) = 7; f(2) = $\frac{1}{2}$; f(-2) = -9