Does this curved line represent a function? If not, at what points does it fail the vertical line test? The coordinate plane with a curved line starts to form the bottom left of the III, I, IV, and I quadrants across.
Options:
A. Yes, it is a function.
B. No, it is not a function.
C. Fails the vertical line test at specific points.
D. Fails the vertical line test throughout the entire curve.
