Correct, A= {(1,1), (2,2), (3,3)}, B= {(1,2), (3,4), (5,6)}, C= {(a,b), (b,b)(c,b)}, D= {(x,y), (j,k), (l,m)}, E = {(apple, mango), (orange, mango), (grapes, mango)}, Incorrect, A = { (1,1), (1,2), (1,3)}, B= {(1,1), (2,2), (2,3)}, C={(a,a), (a,b), (b.c)}, D = {(x,y), (x,d), (w,k)}, E= {(apple, mango), (apple, orange), (apple, grapes)}

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