Choose the odd one out.

BD
HK
MP
NQ E. TW

The odd one out is D. NQ.

A. BD is the two-letter country code for Bangladesh.
B. HK is the two-letter country code for Hong Kong.
C. MP is the two-letter country code for the Marshall Islands.
E. TW is the two-letter country code for Taiwan.

NQ is not a two-letter country code.