From the sets given below, select equal sets and equivalent sets.

(a) B and D, because every element of B is a member of D & every element of D is a member of B.

(b) C and F, because every element of C is a member of F & every element of F is a member of C
                
Equivalent sets:

(a) A, E and H      {∵">∵∵ n(A) = n(E) =n(H) = 2}

(b) B, D and G     {∵">∵∵ n(B) = n(D) =n(G) = 4}

(c) C and F           {∵">∵∵ n(C) = n(F)  = 3}