The correct answer is B - Communicate the issue to the team in the next stand-up meeting.
Agile emphasizes early detection and resolution of impediments through daily communication. The Daily Stand-up is the appropriate forum to raise issues, so the entire team is aware and can decide collaboratively how to proceed.
From the PMI Agile Practice Guide:
"Daily stand-ups allow team members to communicate problems and identify impediments early. The team collaboratively determines how to respond to issues raised." (PMI Agile Practice Guide, Section 5.4 - Stand-up Meetings) Mike Griffiths adds:
"Issues must be shared early and openly. The stand-up is designed to expose blockers and ensure collective team awareness and decision-making." (PMI-ACP Exam Prep, Chapter 6 - Problem Detection and Resolution) Option A skips collaboration and bypasses the team's self-organizing nature. Options C and D delay the communication until the retrospective, which would result in lost time and potentially compound the issue.