A Venn diagram is shown below: a Venn diagram showing two categories, A and B. In the A only circle is 1 and 2, in the B circle is 5 and 6, in the intersection is 3 and 4, and in outside the circles is U What are the elements of (A ∩ B) ' ? {3, 4} {1, 2, 3, 4} {1, 2, 5, 6} {3, 4, 5, 6}