The correct option is
A K
Each letter moves forward with one, two, and so on steps forward as shown in the figure.
The sequence of alphabets,
A, B, C, D, E, F, G, H, I , J, K, L, M, N, ....
Let us check which alphabets form the given series:
A, B,
C, D, E,
F, G,
H, I , J,
K, L,
M, N, ....
It can be observed that the series is as follows:
Jump one alphabet, jump two alphabets, jump one alphabet and so on..
So, after H, jump two alphabets and the alphabet we get is K.
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