Which statement is correct with respect to f(x) = -3|x − 1| + 12?

A.
The V-shaped graph opens upward, and its vertex lies at (-3, 1).

B.
The V-shaped graph opens downward, and its vertex lies at (-1, 3).

C.
The V-shaped graph opens upward, and its vertex lies at (1, -12).

D.
The V-shaped graph opens downward, and its vertex lies at (1, 12).