The Chief Data Officer (CDO) and Chief Information Officer (CIO) have overlapping but distinct roles. The DAMA-DMBOK clarifies: "The CDO is responsible for data-related functions, including metadata management, data security, data architecture, and business intelligence, while the CIO focuses on IT infrastructure and systems" (DMBOK2, Chapter 3: Data Governance, p. 113). Metadata (B), data security (C), data architecture (D), and business intelligence (E) are explicitly within the CDO's purview, though shared with the CIO in some contexts. Financial management (A) is typically outside both roles' direct responsibilities. Since the question implies multiple parts, B, C, D, and E are relevant.
Reference:DAMA-DMBOK2, Chapter 3: Data Governance, Section 3.3, p. 113.