A = {3, 4}, B = {5, 7} হলে, P(A) ∩ P(B) = ?

• ক {{3}, {4}, {5}, {7}, A, B}
• খ {∅, {3}, {4}, {5}, {7},A, B}
• গ ∅ ✅ সঠিক উত্তর
• ঘ {∅}