A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
8, 24, 12,? 18, 54
48
36
29
21
B.
8 x 3 = 2424 ÷ 2 =1212 x 3 = 3636 ÷ 2 = 1818 x 3 = 54