The color of shadow of a green ball is:

Learn about the phenomenon of shadow generation and try to identify the notion that is being applied to this specific topic. Only when an opaque object stands in front of light rays does a shadow appear. Find the opaque item from the ones listed above.
A shadow is a dark shape that is created when an opaque object deflects light from a source.

Any object's shadow will always be black in hue. Since a shadow is created by an opaque item blocking all of the light's beams, there won't be any light there. As a result, we cannot see anything in that form, and the shadow area will be black in a hue.
Regardless of how colorful the object is, the shadow is still created by obstructing the incoming light. Therefore, there is no connection between the object's color and its shadow. Therefore, regardless of the color of the item, the shadow's color is always black.
The green ball's shadow will likewise be black in this instance.

Hence, the correct answer is option D.