.NET naming convention for “ID” (anything identification: Capitalization)

Question

I am in the process of unifying these inconsistent naming conventions and this one problem has been a bit driving me crazy lately.

In the code base I am working with has

Answer 1

Capitalization is for 2 letters acronyms. UI, IP, etc.

"Id" is an abbreviation for Identifier, so it should stay pascal cased.