Router1 is currently operating as the HSRP primary with a priority of 110. Router1 fails and Router2 takes over the forwarding role. Which command on Router1 causes it to take over the forwarding role

The `standby 2 priority` command only sets the priority for HSRP group 2; it does not enable the router to actively take over if it returns to service and has a higher priority.

The `standby 2 preempt` command enables preemption for HSRP group 2, allowing Router1 to reclaim the active role immediately upon recovery since it has a higher priority (110) than other routers (which would likely have the default priority of 100 or less) after a failure.

The `standby 2 track` command links HSRP priority to the state of an interface or object, dynamically reducing priority if tracked items fail, but it does not enable preemption.

The `standby 2 timers` command configures the hello and hold timers for HSRP group 2, which affects detection of failures but not the immediate re-assumption of the active role.