Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports FA0/13.An 802.1Q trunk is configured between the two switches.On CAT1，VLAN10 is chosen as native，but on CAT2 the native VLAN is not specified.What will happen in this scenario？（）

A.802.1Q giants frames could saturate the link.
B.VLAN10 on CAT1 and VLAN1 on CAT2 will send untagged frames.
C.A native VLAN mismatch error message will appear.
D.VLAN10 on CAT1 and VLAN1 on CAT2 will send tagged frames.