tolong di bantu ya kak ,makasih kakak

B = {e,i,k}
C = {5, 15, 20, 25, 30, 35, 40, 45, 50, 55}
D = {234, 342, 423, 432, 243, 324, 245, 452, 524, 542, 254, 425, 345, 453, 534, 543, 354, 435, 256, 562, 625, 652, 265, 526}
E = { x | x < 3, x € C }, C = 0,1,2