Question

Diketahui :
A= {x/ 2≤ x < 22, x ∈ bilangan prima}
B= {5, 7, 9, 11, 13, 15}
Maka A-B= ....


a.
{2, 3, 17, 19}

b.
{5, 7, 11, 13, 15}

c.
{2, 3, 5, 7, 9, 11, 13, 15, 17, 19}

d.
{9, 15, 17}