Which statement is correct when adding a new member switch running software version X to a virtual chassis where the current master switch is running software version Y?
A.
Regardless of whether version X is newer than version Y, the new switch joins the virtual chassis running version X while the rest of the members of the virtual chassis run version Y.
B.
If the version X is newer than version Y, the current master switch and existing members of the virtual chassis are automatically upgraded to version X and the new switch joins the virtual chassis.
C.
If the version X is newer than version Y, the new switch becomes the new master while the current master switch and existing members of the virtual chassis are automatically upgraded to version X and become the new backup and line card switches.
D.
Regardless of whether version X is newer than version Y, the new switch joins the virtual chassis operationally only after its software is upgraded or downgraded to match that of the current master switch.