D is correct answer. Establishing targets for re-use of components https://pubs.opengroup.org/togaf-standard/ea-capability-and-governance/chap04.html The Architecture Board is typically made responsible, and accountable, for achieving some or all of the following goals: Providing the basis for all decision-making with regard to the architectures Consistency between sub-architectures Establishing targets for re-use of components Flexibility of the Enterprise Architecture: To meet changing business needs To leverage new technologies Enforcement of Architecture Compliance Improving the maturity level of architecture discipline within the organization Ensuring that the discipline of architecture-based development is adopted Supporting a visible escalation capability for out-of-bounds decisions

41.2 Responsibilities (https://pubs.opengroup.org/architecture/togaf9-doc/arch/chap41.html) The Architecture Board is typically made responsible, and accountable, for achieving some or all of the following goals: Providing the basis for all decision-making with regard to the architectures Consistency between sub-architectures Establishing targets for re-use of components Flexibility of the Enterprise Architecture: To meet changing business needs To leverage new technologies Enforcement of Architecture Compliance Improving the maturity level of architecture discipline within the organization Ensuring that the discipline of architecture-based development is adopted Supporting a visible escalation capability for out-of-bounds decisions