Select the correct answer. 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).
20 pts for whoever answers correctly