Which firewall will be in the "Active" state after firewall 5050-B has completed its reboot and is back online?

Two firewalls are configured in an Active/Passive High Availability (HA) pair with the following election settings:

Firewall 5050-B is presently in the "Active" state and 5050-A is presently in the "Passive" state. Firewall 5050B reboots causing 5050-A to become Active.

Which firewall will be in the "Active" state after firewall 5050-B has completed its reboot and is back online?
A . Both firewalls are active (split brain)
B . Firewall 5050-B
C . Firewall 5050-A
D . It could be either firewall

Answer: B

Explanation:

Reference: https://live.paloaltonetworks.com/docs/DOC-2926