An illustration of a network diagram. Computer A connected to Switch$1,$ Switch$1$ connected to Switch$2,$ Computer B connected to Switch$2.$

Computers A and B are on the same VLAN and are separated by two switches as shown in the exhibit. Computer A sends a frame to Computer B$.$

Which of the following BEST describes the frame's composition as it travels from A to B$?$

answer

Computer A sends a normal frame. The first switch appends a VLAN ID to the frame. The VLAN ID remains on the frame through the second switch up to Computer B$.$

Computer A sends a normal frame. The first switch forwards the frame to the second switch, where the VLAN ID is appended to the frame and forwarded to Computer B$.$

Computer A appends a VLAN ID to the frame. It travels from switch to switch and arrives at Computer B$,$ where it removes the VLAN ID$.$

Computer A sends a normal frame. The first switch appends a VLAN ID to the frame. The second switch removes the VLAN ID before forwarding it to Computer B$.$