Answer:
D
Explanation:
This is the common graph of a quadratic function (U-shaped).
The number of zeros is equal to the number of times the curve cuts the x-axis.
As we can see, the graph is an Upside-Down "U" that goes on infinitely in the negative y-direction. The graph never cuts the x-axis. Hence, the number of zeros is 0.
Answer choice D is right.