1. 

BEAG, DGCI, FIEK, ?

A. HMIE
B. HKGM
C. HGKJ
D. HKLJ

Answer: Option B

Explanation:

Pattern of the series as shown below

letter-and-symbol-series-logical-reasoning-introduction---letter-and symbol-series-problems

Hence, the missing term is HKGM.