A company connects several cloud and on-premises sites and needs a managed hub-and-spoke connectivity orchestration model for supported resources. Which approach best fits?

1. Evaluate Network Connectivity Center with suitable hub and spoke resources.
2. Add the documented redundant connections and attachments for the required availability topology.
3. Review dynamic routing mode and regional applicability of learned routes.
4. Evaluate Cross-Cloud Interconnect and its supported locations and provider connections.