Three letter prime position slider – UGC NET Question

Each group uses a sliding window of consecutive prime positions: (2,3,5)=BCE, (3,5,7)=CEG, (5,7,11)=EGK, (7,11,13)=GKM. Next is (11,13,17)=KMQ.

Option A:
Option A uses 8 which is not prime.

Option B:
Option B uses 12 which is not prime (and breaks the prime-based rule).

Option C:
Option C is correct because K(11), M(13), Q(17) are consecutive prime positions after the prior window.

Option D:
Option D starts with L(12), which is not a prime position.