Mathematics for IGCSE & O level - Sets (Section 1 - No. 7)

If set A is {1, 2, 3, 4, 5} and set B is {4, 5, 6, 7, 8}. What is the set A ∩ B (intersection)?

{1, 2, 3, 4, 5, 6, 7, 8}

{1, 2, 3}