Exam OG0-093 topic 1 question 206 discussion

Scenario:
Please read this scenario prior to answering the question
The ABC company is a large, global commodities trading company which has been growing rapidly through a series of acquisitions.
Each new business is performing well in its markets. However, the lack of integration between headquarters and the business units has increasingly caused problems in the handling of customer and financial information. The inability to share information across businesses has resulted in lost opportunities to "leverage the synergies" that had been intended when the businesses were acquired. At present, each business unit maintains its own applications. Despite an earlier initiative to install a common application to manage customer, products, supplier, and inventory information, each business unit has different ways of defining each of these core elements and has customized the common application to the point where the ability to exchange information is difficult, costly, and error-prone.
As a result, the company has begun implementing a single Enterprise Resource Planning (ERP) system to consolidate information from several applications that exist across the lines of business.
The Corporate Board is concerned that the new ERP system must be able to manage and safeguard customer information in a manner that meets or exceeds the legal requirements of the countries in which the company operates. This will be an increasingly important capability as the company expands its online services offered to clients and trading partners.
The CIO has formed an Enterprise Architecture department, and one of the primary goals in its charter is to coordinate efforts between the ERP implementation team and the business unit personnel who will be involved in the migration process. The CIO has also formed a cross-functional Architecture Review Board to oversee and govern the architecture. The company has selected TOGAF 9 as the basis for its Enterprise Architecture program. The CIO has endorsed this choice with the full support of top management.

Refer to the Scenario -
You are serving as the Chief Architect.
You have been asked to recommend the approach to take in the Preliminary Phase to ensure that the Corporate Board's concern is addressed.
Based on TOGAF 9, which of the following is the best answer?