Solution:Science = P, Q, R
Commerce = A, B, C
Arts = J, K, L
P will not go with Q and R. It means P is the first player.
A and C will always go together. So, A and C are 2nd and 3rd player.
We need only 4 player. So, we can’t take
K and L because they always go together.
So, J is the fourth player.
So, Team = A, P, C, J