What should the agile coach ensure that developers do?

To ensurehigh code quality, especially for critical products, agile teams employtechnical practiceslikepair programmingandpeer code reviews. ThePMI Agile Practice Guide (Section 5.5: Technical Practices and Quality)andMike Griffiths’ PMI-ACP Exam Prep Book (Chapter 5: Quality and Technical Excellence)support these practices as part ofbuilt-in quality—ensuring that issues are caught early in the development cycle.

Option Ais correct: pair programming and peer reviews increase code quality and reduce defects early.

Option Bis essential but a feedback tool—not a direct quality assurance practice.

Option Cimplies waterfall-style handoffs.

Option Dis inefficient and risky without integrated testing or validation.