Pyramids - Use of Numbers & Letters
Choose the place of the question mark in the series from number in the list
2, 4, 8, 5 : 3, 6, 9, 5 then 8, 11, 14, 12 : ?
A
12, 9, 13, 15
B
15, 12, 9, 13
C
5, 9, 12, 8
D
9, 13, 15, 12