What are three types of routing instances? (Choose three.)

VPN is a broader network solution category, not a specific Junos routing instance type; `vrf` is the instance type used for Layer 3 VPNs.

A `virtual-router` routing instance creates a completely isolated routing table and forwarding domain, functioning like a separate physical router within a single device.

`policy` is not a routing instance type; routing policies are configured within routing instances but are not instance types themselves.

A `vrf` (VPN routing and forwarding) routing instance is specifically used to manage distinct routing and forwarding tables for VPNs, allowing multiple VPNs to securely share a single router.

A `forwarding` routing instance is designed for policy-based routing, where traffic is forwarded based on defined policies rather than necessarily participating in standard routing protocols.