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Which of the following pairs of sets are not equivalent?

A = {2, 4, 6, 8}, B = {u, v, w, x}
A = {a, b, c}, B = {α, β, γ, δ, ν}
A = {}, B = ϕ
A = {x: x = 2n, n ∈ N}, B = {x: x = 2n + 1, n ∈ N}.

Correct Answer: A = {a, b, c}, B = {α, β, γ, δ, ν}

Explanation:

NA

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