The graph of the function f is shown. The domain of f is [0, 50]. What is the range of g(x) = 4f(x)?

The graphs with the X-coordinate marks 0, 10, 20, 30, 40 and 50. The Y-coordinate mark 0, 0.5, 1, and 1.5. There is an absolute value function with vertex at (25, 1.75). It starts at origin and ends at (50, 0).

A. [0, 50]
B. [0, 70]
C. [0, 1.75]
D. [0, 7]