The correct answer is B - Two-way communication.
Agile thrives on collaboration and transparency. In sprint planning, the product owner presents the business needs (via user stories), and the team responds with estimates and commitments. This mutual communication fosters alignment, shared understanding, and trust, which is characteristic of two-way communication.
PMI Agile Practice Guide:
"Agile projects rely on high levels of communication and collaboration, especially between the product owner and development team." (PMI Agile Practice Guide, Section 4.2 - Communications and Collaboration) Mike Griffiths:
"Two-way communication allows feedback and clarification. Sprint planning is a prime example where the PO and team interact to shape and commit to sprint goals." (PMI-ACP Exam Prep, Chapter 4 - Team Performance) Incorrect options:
* A refers to managing emotions, not communication style.
* C is unrelated to agile practice.
* D (reciprocal communication) is a less common term and not directly aligned with the scenario.