Which one of the following is the practice by which the enterprise architecture and other architectures are managed and controlled at an enterprise level?

Architecture governance is specifically concerned with ensuring the effective and efficient use of the enterprise architecture, guiding the development of architectures, and ensuring compliance with architectural principles, policies, and standards across the organization. It provides the framework for managing and controlling architecture at an enterprise level.

Corporate governance is a broader concept that deals with the overall management and control of an entire corporation, including financial, ethical, and strategic aspects, not just architecture.

IT governance focuses on the management and control of IT resources and decision-making within an organization, which is broader than just enterprise architecture.

Technology governance typically focuses on the management and control of technology choices and standards, which is a subset of architecture governance.

A program management office (PMO) is responsible for overseeing and coordinating multiple related projects or programs, but it doesn't primarily define the practice of managing and controlling enterprise architecture itself.