Answer: OPTION D
Explanation:
The zero of the function is the intersection of the function with the x-axis.
A function intersects the x-axis when the value of y is zero (
)
Then, you can observe in the graph attached that the function intersects the x-axis at the point (-5,0), where the x-coordinate is -5 and the y-coordinate is 0:

Therefore, you can identify that the zero of the function shown in the figure is:

This matches with the option D.