In the additive process of color mixing, red light, green light, and blue light combine to produce light.

From the ultraviolet spectrum of light, the visible region or the light visible to the naked eye is the rainbow color, also known as the ROYGBIV. When these colors hit a prism, it reflects white light. In other words, white light is not technically a color. It is an indication of the presence of all visible colors.

However, white light can also be produced by mixing three colors at certain frequencies. When you mix the primary colors -red, blue and green - you also produce white light. Therefore, the answer is white light.

The correct answer is c b c a d