Explanation
According to the PMBOK Guide 7th Edition, one of the principles of project management is to "embrace adaptability and resiliency". This means that the project manager should anticipate and respond to changes that may affect the project objectives, scope, schedule, cost, quality, or risks. The project manager should also use appropriate change management processes and tools to evaluate and implement changes in a controlled manner. The PMBOK Guide 7th Edition also states that "changes are inevitable and may originate from any source at any time during the project life cycle". The project manager should assess the change's overall impact to the project before submission to the change control board (CCB), which is the authorized body to approve or reject changes. The project manager should also communicate with the stakeholders who are affected by or involved in the change, and manage their expectations and feedback. Therefore, the best answer is D. References: PMBOK Guide 7th Edition, pages 11, 12, 49, 50, 51.