For Exercise 8, let U = {a, b, c, d, e, f, g, h, k}, A = {a, b, c, g}, B = {d, e, f, g}, C = {a, c, f}, D = {f, h, k}. 8. Compute: (a) A D = {a,b,c,g,f} (b) B D = {d,e,f,h,k,g} (c) C D = { (d) A D (e) (A B) (C B) (f) B C (g) B (h) C - B (i) C D (j) (A B) (B D) (k) A B C (l) A B C (m) A (B C) (n) (A B) C (o) AB (p) AB