Which identifier should an architect use to meet these requirements?

A client needs to send marketing emails using Adobe Campaign to all customers who have logged in to the website within the past 30 days but have only bought products at a retail store location. These customers are represented in AAM using the segment name of “1st Party: Recent Visitor C Retail Shoppers”.

Which identifier should an architect use to meet these requirements?
A . Declared ID
B . Experience Cloud ID
C . Profile ID
D . AAM UUID

Answer: D