Why will a rainbow never have a black stripe?

(1 point)
Responses

Black is not a color on the color spectrum.
Black is not a color on the color spectrum.

In direct sunlight, the color back will not appear.
In direct sunlight, the color back will not appear.

Dark color spectrum rainbows only appear at night.
Dark color spectrum rainbows only appear at night.

If there is a black layer, it is no longer called a rainbow.

Black is not a color on the color spectrum