Diketahui A = {1, 2, 3, 5, 7, 12, 15, 19} dan B= {x| x ≤ 20, x bilangan prima}. Hasil dari A – B adalah.... A {1, 2, 3, 5, 7, 11, 12, 13, 15, 17, 19} B {2, 3, 5, 7, 19} C {1, 12, 15} D {3, 11, 13, 17} JAWAB