Explanation
A communication plan is a document that outlines the objectives, strategies, tactics, channels, audiences, messages, and metrics for communicating about a change initiative. One of the essential items that should be included in a communication plan is how the results of a communication activity will be monitored and evaluated. This involves defining the criteria and methods for measuring the effectiveness and impact of the communication activities, such as feedback surveys, focus groups, analytics, or indicators of awareness, understanding, and support for the change.
References:
* https://www.yourthoughtpartner.com/blog/change-management-communication
* https://www.prosci.com/resources/articles/communications-checklist-for-change-management

Explanation
The Beckhard and Harris change formula is a tool to assess the readiness and motivation for change in an organization. The formula states that change will happen when D x V x F > R, where D is dissatisfaction with the status quo, V is vision of the desired future state, F is first steps or action plan for the change, and R is resistance to change. To increase an individual's dissatisfaction with the status quo, one possible action is to communicate the danger of inaction, such as the risks, threats, or losses that may occur if no change is made.
This can create a sense of urgency and need for change among the individual. The other options are not actions that will increase dissatisfaction with the status quo, but rather actions that will address other factors in the formula.

Explanation
According to Trompenaars and Hampden-Turner, culture can be expressed at three levels: artifacts, values, and basic assumptions. Artifacts are the visible and tangible manifestations of culture, such as symbols, rituals, and heroes. Values are the shared beliefs and preferences that guide behavior and decision making. Basic assumptions are the unconscious and taken-for-granted beliefs that underlie values and artifacts. Meeting customer need is more important than profit is an example of a basic assumption, as it reflects a deep-rooted belief that influences the values and artifacts of the organization. The other options are examples of artifacts or values, not basic assumptions. References:
https://apmg-international.com/sites/default/files/Change%20Management%20Foundation%20Sample%20Paper (page 11)

Explanation
Social media is a type of communication channel that allows for online interaction and collaboration among people. Social media can be used to foster engagement and collaboration during change, as it can provide information, feedback, support, and innovation. However, social media also poses some challenges and risks, such as misinformation, distraction, or conflict. Therefore, the best practice for getting the most from social channels during change is to make clear to people what is considered acceptable use of social media, such as the purpose, tone, frequency, and content of the messages. The other options are not best practices, as they either encourage unrestricted or restricted use of social media, which can have negative consequences for the change.

Explanation
Mayfield's stakeholder radar technique identifies four levels of engagement for stakeholders: required, desired, actual, and planned. The required level of engagement is the minimum level that is necessary for the stakeholder to support the change or at least not resist it. References:
https://apmg-international.com/sites/default/files/Change%20Management%20Foundation%20Sample%20Paper (page 11)