At the musical he attended over the weekend, Andile noticed that whenever the red and green spotlights overlapped, they seemed to change to a yellow spotlight. This can be explained

At the musical he attended over the weekend, Andile noticed that whenever the red and green spotlights overlapped, they seemed to change to a yellow spotlight. This can be explained using the principles of
A) additive colour mixing.
B) subtractive colour mixing.
C) hypercomplex feature detection.
D) opponent-processing of colours.