Exam Certified Data Architect topic 1 question 122 discussion

Northern Trail Outfitters (NTO) plans to maintain contact preferences for customers and employees. NTO has implemented the following:

1. Customers are Person Accounts for their retail business.
2. Customers are represented as Contacts for their commercial business.
3. Employees are maintained as Users.
4. Prospects are maintained as Leads.

NTO needs to implement a standard communication preference management model for Person Accounts, Contacts, Users, and Leads.

Which option should the data architect recommend NTO to satisfy this requirement?