A user requests one primary VLAN, two community VLANs, and two isolated VLANs for multicast capable servers that must transmit multicast traffic and receive multicast traffic through the use of IGMPv2. On which VLAN must the IGMP querier be configured? 

Answer options:

A. only the primary VLAN
B. Layer 2 multicast is not supported when using private VLANs
C. isolated VLAN and both community VLANs
D. primary and secondary VLANs

C