Pa help po thank u po

Answer:
1.A and B = { T, I, C, E }
2. ?
3. ?
4.B and C ={ I, C, E }
5.A and B and C = { T, I, C, E }
I hope it helps po diko alam ang answer sa
2 at 3
correct me if I'm wrong
#stay safe kabayan :D