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If the Boolean expression (p ⊕ q) ∧ (~p ☼ q) is equivalent to p ∧ q, where ⊕ , ☼ ∈ { ∧ , ∨ }, then the ordered pair ( ⊕ , ☼ ) is

1. ( ∨ , ∨ )
2. ( ∧ , ∧ )
3. ( ∧ , ∨ )
4. ( ∨ , ∧ )

Correct answer: ( ∧ , ∨ )

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