Which of the following is a type of organizational change?

The acquisition of another company is a significant type of organizational change because it fundamentally alters the structure, culture, and operational dynamics of the organization involved. When a company acquires another, it often leads to changes in leadership, employee roles, resource allocation, and potentially even the strategic direction of the organization. This kind of change can have far-reaching implications, such as shifts in power dynamics, integration challenges, and adjustments in company policies to combine the two entities smoothly.

In contrast, while a new advertising strategy, change in company branding, and updates in office decor might enhance operational effectiveness or brand image, they generally do not reshape the organization's core structure or strategic foundations to the same extent as an acquisition. These types of changes are usually more tactical and might be considered part of a broader change effort, but they do not signify a structural transformation in the way that acquiring another company does.