Backward three letter groups with step of three – UGC NET Question

Starting letters W(23), T(20), Q(17), N(14) decrease by −3 each time. Next start is K(11), giving KLM.

Option A:
Option A starts at J(10), which is −4 from N, not −3.

Option B:
Option B is correct because K is −3 from N and L,M follow consecutively.

Option C:
Option C starts at L(12), which is −2 from N, not −3.

Option D:
Option D moves forward from N (breaks the backward pattern).