Priority group activation question

I've been searching for an answer for this question regarding priority group activation but would like to confirm the functionality. Lets say we have the below configuration (taken from the LTM concepts documentation):

pool my_pool {
lb_mode fastest
min active members 2
member 10.12.10.7:80 priority 3
member 10.12.10.8:80 priority 3
member 10.12.10.9:80 priority 3
member 10.12.10.4:80 priority 2
member 10.12.10.5:80 priority 2
member 10.12.10.6:80 priority 2
member 10.12.10.1:80 priority 1
member 10.12.10.2:80 priority 1
member 10.12.10.3:80 priority 1
}

So lets say two members of priority group 3 go down, activating priority group 2. Would all of the members in group 2 then be load balanced to, or would we only load balance to one member in group 2 to reach 2 active members for the "min active members 2"?

Thanks!