If set A = {5, 15, 20, 30} and B = {5, 15, 20} which of the following represents (A ∩ B) ?

• ক {5, 20, 30}
• খ {20}
• গ {5, 15, 20, 30}
• ঘ {5, 15, 20} ✅ সঠিক উত্তর