Five boxes contain varsities colour of balls red, green, yellow, blue, pink, violet. Colour contain of each box is given below.
A -> red, green, blue
B -> red, green, yellow
C -> red, pink, violet
D -> pink, blue, violet
E -> pink, green, blue
You are asked to choose some of boxes but not all so that you get maximum number of all balls, which boxes would you choose?
i) A,B, C
ii) B, C, E
iii) B, D
iv) C, F