Geographic locations, based on where they were, mountains, streams, rivers, etc.
Commission for the Investigation of Abuse of Authority (CIAA) (Part 21)
Auditor General (Part 22)
Public Service Commission (Part 23)
Election Commission (Part 24)
National Human Rights Commission (Part 25)
National Natural Resources and Fiscal Commission (Part 26)
North towards the middle east, before moving east towards Thailand, before going south
The answer is B. I am 100% sure and know this from experience.