Refer to the exhibit. An engineer must design an automatic failover solution. The solution should allow HSRP to detect a WAN 1 failure and initiate an automatic failover, making router R2 the active…

Implementing Enhanced Object Tracking on router R1 allows the HSRP group's priority to be dynamically reduced when a tracked object, such as the WAN 1 connection's state, changes, thereby triggering an HSRP failover.

Using a floating static route is a routing mechanism for specific prefix failover and does not directly integrate with HSRP to trigger its active/standby state transition based on an interface failure.

Implementing IP SLA (IP Service Level Agreement) on router R1 enables active monitoring of the WAN 1 connection's reachability or performance. The state of this IP SLA operation can then be tracked by Enhanced Object Tracking to influence HSRP priority.

Implementing PBR (Policy Based Routing) routes traffic based on defined policies but does not provide a mechanism to detect WAN link failure and trigger an HSRP state change.

IP source routing is a deprecated and insecure routing option that has no relevance to HSRP failover based on WAN link failures.