What are the differences between the IGMP versions? (Choose two.)
A. IGMPv1/v2 cannot elect queriers but IGMPv3 can.
B. In IGMPv2/v3, members can actively leave groups, whereas in IGMPv1 members cannot actively leave groups.
C. IGMPv1/v2 do not support the SSM model but IGMPv3 supports.
D. IGMPv1/v2 do not support group-specific Query messages but IGMPv3 supports.