Which of the given letter-clusters will replace the question mark (?) in the following series?
FBID, ICMF, LDQH, ?, RFYL
1
OETJ
2
OEUJ
3
OEVI
4
OEWJ
Which of the given letter-clusters will replace the question mark (?) in the following series?
FBID, ICMF, LDQH, ?, RFYL