Question

Given a parabola with zeros at x=0 and x=4,
which of the following MUST be true:
I. The parabola opens upward
II. The parabola has a line of symmetry
at x=2
III. The parabola intercepts the y-axis at y=0

a. I only
b. III only
c. I and III only
d. II and III only
e. I, II, and III