Choose the three functions of a WAN Edge router. ($($Choose three.)$)$

Deploys centralized control plane policies, such as service chaining, multitopology, and shared services.

Establishes secure control plane connections with Cisco vSmart controllers.

Provides a first point of authentication for new devices joining the Cisco SD−$-$WAN fabric.

Provides a secure data plane with remote WAN Edge routers.

Uses traditional routing protocols such as OSPF, EIGRP, and BGP for service−$-$side routing.