K-12, M-13
L-12, M-14
L-12, N-14
K-12, M-14
Answer is Right!
Answer is Wrong!
The correct answer is B. L-12, M-14.
The sequence is $2n$, where $n$ is the number of the letter in the alphabet. So, the next two terms are $L-12$ and $M-14$.
A. K-12, M-13 is incorrect because $K$ is the 11th letter of the alphabet, not the 12th.
C. L-12, N-14 is incorrect because $N$ is the 14th letter of the alphabet, not the 13th.