Which three option should a data architect perform to resolve the issues with the customer data?

Northern Trail Outfitters (NTO) has a variety of customers that include householder, businesses, and individuals.

The following conditions exist within its system:

NTO has a total of five million customers.

Duplicate records exist, which is replicated across many systems, including Salesforce.

Given these conditions, there is a lack of consistent presentation and clear identification of a customer record.

Which three option should a data architect perform to resolve the issues with the customer data?
A . Create a unique global customer ID for each customer and store that in all system for referential identity.
B. Use Salesforce CDCto sync customer data cross all systems to keep customer record in sync.
C. Invest in data duplicate tool to de-dupe and merge duplicate records across all systems.
D. Duplicate customer records across the system and provide a two-way sync of data between the systems.
E. Create a customer master database external to Salesforce as a system of truth and sync the customer data with all systems.