Which organizations should be involved in communications planning?

The correct choice emphasizes that the Planning section plays a crucial role in communications planning due to its fundamental responsibilities in establishing strategies, objectives, and overall tactics for incident management. This section is tasked with gathering, analyzing, and disseminating information relevant to the incident, which inherently includes establishing clear communication channels and protocols.

Furthermore, the Planning section is responsible for ensuring that all operational periods and resource allocations are well-coordinated, which is critical in effective communication. By maintaining a comprehensive understanding of the incident's evolution and the needs of various functional groups, the Planning section is pivotal in facilitating accurate and timely information sharing among all responding agencies and stakeholders.

While other sections like Finance, Logistics, and Operations have their own critical functions within the incident management framework, they do not specifically focus on the overarching structure of communication planning that is essential for coordinated efforts during an incident response. Therefore, the Planning section’s involvement is essential to ensure that information is effectively managed throughout the response effort.