PLZZZZZZZZZ HELP i will give BRAINLEST
a person driving down the road sees 2 stop lights ahead. each fight can each be either red (R), yellow (Y), or green (G). which list shows all the possible combinations for the two lights?

A- RYG, RYG

B- R, Y, G, R, Y, G

C- RY,RG,YR,YG,GR,GY

D- RR,RY,RG,YR,YY,YG,GR,GY,GG