What is the expected behavior of the VMs residing on that host when a controller VM becomes unavailable?

What is the expected behavior of the VMs residing on that host when a controller VM becomes unavailable?
A . A Live Migration will be performed on the affected VMs.
B . The host will automatically redirect I/O and VMs will continue running.
C . The impacted host and VMs will automatically shut down.
D . VM High Availability will restart the impacted VMs on another host

Answer: B