The correct answer is C - Work with the product owner to assess the impact for reprioritization.
Agile recognizes that new priorities may emerge during a sprint. The product owner owns the backlog and prioritization. If a request threatens sprint commitments, it should be reviewed and discussed with the product owner to determine the trade-offs and make informed decisions.
PMI Agile Practice Guide:
"New requests should be assessed in collaboration with the product owner. The team should make prioritization trade-offs in a transparent manner to maintain focus on delivering value." (PMI Agile Practice Guide, Section 5.5 - Iteration Planning and Section 5.7 - Change Management) Mike Griffiths:
"Product owners are responsible for backlog prioritization. When urgent issues arise, teams should discuss them with the PO rather than unilaterally shifting focus." (PMI-ACP Exam Prep, Chapter 3 - Value-Driven Delivery) Incorrect options:
* A risks burnout and violates sustainable pace.
* B avoids accountability.
* D assumes the change can wait, which may not align with customer needs.