Which of the following letter-clusters will replace the question mark (?) in the given series?
XEJT, UHMQ, ?, ONSK, LQVH
1
RKPN
2
SKQN
3
RKQM
4
RLPN
Which of the following letter-clusters will replace the question mark (?) in the given series?
XEJT, UHMQ, ?, ONSK, LQVH