From the sets given below, pair the equivalent sets :
A = {1, 2, 3}, B = {t, p, q, r, s}, C = {α,β,γ }, D = {a, e, i, o,u}.
Two finite sets are said to be equivalent if they have the same number of elements.
As A and C have same number of elements, and B and D also have same number of elements.
∴ A is equivalent to C and B is equivalent to D.