Which three critical steps should the Solution Architect take first?

A client is running a project with a 626 multi-cloud setup involving Marketing Cloud, Sales Cloud, Service Cloud, Experience Cloud, and Mu’eSoft. Currently, MuleSoft is primarily used to integrate with third-party systems. Marketing Cloud is connected to Sales/Service using the standard connector. A recent requirement-gathering session, involving all functional streams, brought up the question of where consolidated reporting mil happen. So far, reporting has only been looked at individually per stream.

There is a steering committee meeting 1 week from now. The Solution Architect was asked to provide different solutions to fix the problem. The expectation is that a high-level evaluation will be done prior the steering committee meeting so that an indication of options can be given and additional funding can be requested.

Which three critical steps should the Solution Architect take first? Choose 3 answers
A . Ensure all data objects across the different clouds have a unique external identifier
B. Review the established and planned dataflows to understand where the systems of record sit and where data is transported to already.
C. Review the system landscape to identify other existing solutions for reporting and start to investigate high-level cost impacts (inel. licenses aspects) for the most viable.
D. Identify key drivers and high-level data scope behind the need for a consolidated reporting.
E. Draft a solution to show how consolidated reporting can be done using CRM Analytics.

Answer: C,D,E