Refer to the exhibit.



MTU has been configured on the underlying physical topology, and no MTU command has been configured on the tunnel interfaces.
What happens when a 1500-byte IPv4 packet traverses the GRE tunnel from host X to host Y, assuming the DF bit is cleared?

A.	The packet is discarded on router B
B.	The packet arrives on router C without fragmentation
C.	The packet arrives on router C fragmented
D.	The packet is discarded on router A