A = {1, 2, 3}, B = {3, 4}, C = {1, 5, 6} হলে (C - A) × B = ?

• ক {(5, 3), (5, 4), (6, 3), (6, 4)} ✅ সঠিক উত্তর
• খ {(5, 3), (5, 4), (5, 1), (6, 1)}
• গ {(3, 5), (4, 5), (3, 6), (4, 9)}
• ঘ {3, 4, 5, 6}