The answer is C.
the next letter would be 'b'
It's called a sequel.
Q
The title of the next book in The Dresden Files series is reported to be called Skin Game.
c
D
c
The next two letters are likely C & U. There are at least 2 patterns in these letters. FIrst is the list of vowels that make up every other letter. Then the letters alternate from the ends of the alphabet. If there is a Z, a B, then a Y, then C would likely be next, and then X. But there would be whatever vowel in sequence next.
what is the next letter e h l q
S
Q
The next (and last) letter is C. Just as a countdown counts backwards, this series is "countdown" spelled backwards.
c is next
y
S
T