You have configured L2TP on VLAN blue.
Which CLI command verifies that STP BPDUs are being tunneled?
A.
show ethernet-switching layer2-protocol-tunneling statistics
B.
show ethernet-switching layer2-protocol-tunneling vlan blue
C.
show ethernet-switching layer2-protocol-tunneling interface
D.
show ethernet-switching layer2-protocol-tunneling vlan blue extensive