Correct option is A
Series: B, E, H, K, ?, Q
The pattern shows that each letter is increasing by +3 positions in the alphabet:
B (2) + 3 = E (5)
E (5) + 3 = H (8)
H (8) + 3 = K (11)
K (11) + 3 = N (14)
Thus, the next letter should be N.
Checking further:
N (14) + 3 = Q (17), which matches the final term.
Correct answer: (a) N