正解:D
According to the PMBOK Guide, 6th edition, one of the key processes of the Project Resource Management knowledge area is Develop Team, which involves improving the competencies, interaction, and overall team environment to enhance project performance. One of the tools and techniques for this process is training, which involves providing guidance and instruction to enhance the skills and competencies of the team members. By supporting the team members' growth and development, the project manager can help them to acquire the necessary knowledge and skills to work effectively in an agile environment, and to adapt to the changes and challenges that may arise during the project. References: PMBOK Guide, 6th edition, pages 336-
337, 341.