When configuring HSRP on IPv6-enabled interfaces, which two commands are required? (Choose two)

When configuring HSRP on IPv6-enabled interfaces, which two commands are required? (Choose two)
A . SwitchA(config-if)# hsrp version 2
B . SwitchA(config-if)# hsrp <group-number> ipv6
C . SwitchA(config-if># key 6
D . SwitchA(config-if)# standby 6 preempt
E . SwitchA(config-if)#priority <level>

Answer: A, B

Explanation:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/15-sy/fhp-15-sy-book/ip6-fhrp-hsrp.html#topic_BC3E645261274DE6B46AA7F2A8E70048