A Venn diagram is shown below: a venn diagram showing two categories, A and B. In the A only circle is 5 and 2, in the B circle is 1 and 7, in the intersection is 4 and 3, and in outside the circles is U What are the elements of (A ∩ B) ' ?
{1, 3, 4, 7}
{2, 3, 4, 5}
{3, 4}
{1, 2, 5, 7}