Which IPv6 multicast scope is associated with sending data to multiple nodes in a single organization?

The correct answer is associated with the concept of IPv6 multicast scoping, which is important for managing how multicast messages are transmitted within networks. The term "organization-local" refers specifically to a multicast scope that is intended for use within a single organization. This scope allows for efficient communication among nodes within that organization without impacting external networks.

In the context of IPv6 multicast addresses, organization-local multicast addresses are designed to serve a larger area than link-local and site-local addresses, which are limited to specific scopes. Link-local addresses are meant for communication within the same local link and cannot be routed outside of that link. Site-local addresses, while intended for use within a site or an organizational subnetwork, do not extend to encompass an entire organization.

The global multicast scope refers to addresses that can be used for communication across the entire Internet, which is not limited to a specific organization. Thus, organization-local is the most accurate description for a scope that allows for sending data to multiple nodes specifically within a single organization's infrastructure.