正解:A
According to the PMI-PBA guide, quality standards are the criteria that the project team uses to measure the quality of the product or service. Quality standards should be aligned with the customer's needs and expectations, and should be defined and agreed upon by the project team and the stakeholders. Quality standards should also be adaptable to the changing requirements and feedback in an agile environment. One of the agile principles is to deliver working software frequently, which implies that testing should be done early and continuously throughout the project lifecycle. Testing is not only a way to verify the quality of the product, but also a way to validate the value of the solution and elicit feedback from the customer. Therefore, the project manager should coach the team to determine the tools and techniques suitable for the project and ensure that testing is done early and continuously, as this will help the team deliver a high-quality product that meets the customer's needs and expectations. References:
* PMI-PBA guide, Chapter 5: Planning the Business Analysis Approach, Section 5.2.3: Quality Standards, p. 115-116
* PMI-PBA guide, Chapter 6: Traceability and Monitoring, Section 6.2.1: Testing, p. 141-142
* PMI-PBA guide, Appendix A: Agile Principles and Practices, Section A.1: Agile Principles, p. 263
* PMP Exam Study Guide, Chapter 8: Quality Management, Section 8.1: Plan Quality Management, p.
395-396
* PMP Exam Study Guide, Chapter 8: Quality Management, Section 8.4: Control Quality, p. 413-414