Q) A man has three bags. There are 4 marbles of different colors in first bag, 5 marbles of different colors in second bag and 3 marbles of different colors in third bag. If two colors are such which are only in first and second bag and one color is such which is in all the three bags, how many different colors are in all the three bags?
Options:
A)10
B) 9
C) 7
D) 8