J
I
d
Puzzle Cheater! Answer is D
what is the next sequence a, d, g, j
d
S
It's K!
T
k comes next, and then l.
U (fourth, third, fourth, third, etc).
The missing letter is C. When the alphabets are used to represent the missing space, the sequence becomes "A B C D E F G H I J K L M N O P."
T