1. 

What should come in the place of question mark (?) in the following alpha numeric series?

XW2, TS6, PO10, LK14, ?

A. HG18
B. JI18
C. HG16
D. IH18
E. JG12

Answer: Option A

Explanation:

Pattern of the series as shown below

letter-and-symbol-series-logical-reasoning-practice-level---letter-and symbol-series-problems

Hence, the missing term is HG18.