Communicating the objectives and responsibilities to staff is the BEST way to demonstrate senior management's commitment to IT governance. IT governance is the process of ensuring that IT supports the achievement of the organization's goals and objectives, and delivers value to its stakeholders1. IT governance involves aligning the IT strategy, policies, processes, and resources with the business strategy, needs, and expectations2. However, implementing and sustaining IT governance requires a significant amount of change in the organization, such as introducing new technologies, standards, roles, and responsibilities3. Therefore, communicating the objectives and responsibilities to staff is essential for demonstrating senior management's commitment to IT governance, as it can:
Provide the direction and mandate for the IT governance initiative on an ongoing basis Communicate the vision, mission, goals, and objectives of the IT function to all stakeholders Allocate the necessary resources and capabilities to enable the IT governance processes and activities Monitor and evaluate the performance and outcomes of the IT function and provide feedback and recognition Foster a positive and collaborative culture that values IT as a strategic partner and enabler of the business The other options are not as good as option C. While it is important to communicate the legal and regulatory requirements, the approved IT investment opportunities, and the need for enterprise architecture (EA), these are not sufficient to demonstrate senior management's commitment to IT governance. They are rather means to achieve the end goal of implementing and sustaining IT governance. They do not necessarily reflect the level of commitment, involvement, and support from the management toward IT governance. References := What is IT Governance? Definition & Examples | ASQ2 What is IT governance? A formal way to align IT & business strategy1 How to Involve Senior Management in the Information Security Governance ...3

The first step in establishing a risk management process is to identify assets, because assets are the resources that have value to the organization and need to be protected from potential threats. Assets can include physical, human, information, financial, and intangible assets. Identifying assets helps to determine their criticality, ownership, and dependencies, as well as the potential impact of losing or compromising them. According to the ISO 31000:2018 standard, one of the components of the risk management framework is establishing the context, which includes defining the scope, objectives, and criteria for risk management, as well as identifying the internal and external factors that can affect the achievement of objectives1. Identifying assets is part of establishing the context. The other steps of the risk management process, such as identifying threats, determining the probability of occurrence, assessing risk exposures, and implementing risk treatments, follow after identifying assets. Reference := 1: ISO 31000:2018(en), Risk management - Guidelines