An extended ping running varying packet size falls for packets with a payload of 1497 bytes and
above. What could be the problem?

A.
The LAN MTU has been automatically decreased to cater for the addition of a label.

B.
The WAN MTU has been automatically increased by the length of the label.

C.
The packet is being fragmented by the LSR.

D.
The MTU has been increased by a label and there are old or low end switches in the network.