Select the letter-cluster that can replace the question mark (?) in the following series.DAG, FCI, ? JGM, LIO

Select the letter-cluster that can replace the question mark (?) in th

1.	Select the letter-cluster that can replace the question mark (?) in the following series.DAG, FCI, ? JGM, LIO
A.	HEK
B.	IFL
C.	HKE
D.	GDJ
Answer» B. IFL