A frame on vlan 1on switch s1 is sent to switch s2 when the frame is received on vlan 2, what causes this behavior?

Refer to the exhibit.

A frame on vlan 1on switch s1 is sent to switch s2 when the frame is received on vlan 2, what causes this behavior?
A . trunk mode mismatches
B . vlans that do not correspond to a unique IP subnet
C . native vlan mismatches
D . allowing only vlan 2 on the destination.

Answer: C