Correct option is B
Series: HLA, BFU, VZO, PTI, ?
Logic: Subtract 6 for each letter.
First Letters: H → B → V → P → ?
H - 6 = B, B - 6 = V, V - 6 = P, P - 6 = J
Next first letter: J
Second Letters: L → F → Z → T → ?
L - 6 = F, F - 6 = Z, Z - 6 = T, T - 6 = N
Next second letter: N
Third Letters: A → U → O → I → ?
A - 6 = U, U - 6 = O, O - 6 = I, I - 6 = C
Next third letter: C
Final Answer: JNC