The r& d group is testing an alternative color scheme to rgb labeled rgbo where an additional color component (orange) is added to the traditional red, green, and blue components in order to specify a unique color. a. how many different colors could be represented with an rgbo scheme if 7 bits were used to represent each rgbo component (7 for r, 7 for g, 7 for b, and 7 for o)? b. how many different colors could be represented with an rgbo scheme if 8 bits were used to represent each rgbo component (8 for r, 8 for g, 8 for b, and 8 for o)? c. finally, how many different colors could be represented with an rgbo scheme with 4 bits for red, 8 bits for green, 9 bits for blue, and 10 bits for orange?