Refer to the exhibit.



VLANs 50 and 60 exist on the trunk links between all switches. All access ports on SW3 are configured for VLAN 50 and SW1 is the VTP server.
Which command ensures that SW3 receives frames only from VLAN 50?

A.	SW1(config)# vtp mode transparent
B.	SW3(config)# vtp mode transparent
C.	SW2(config)# vtp pruning
D.	SW1(config)# vtp pruning