Multiple WLCs Are Implemented in a High-Availability Configuration in a Mobility

Multiple WLCs are implemented in a high-availability configuration in a mobility group. APs are deployed with only a primary controller assigned. By default, which mobility group member controller do the orphaned APs join in the event of a failed controller?

A) controller with the most available AP free license capacity
B) controller with the lowest percent of associated APs per license capacity
C) controller with the least CPU utilization over the last reporting period
D) controller with the least number of associated APs