A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
6, 9, 15, 24, 39, 63, ?
97
115
102
124
C.
102
First number + Second number = Next number,
6 + 9 = 15, 15 + 9 = 24, 24 + 15 = 39, 39 + 63 = 102