Why is SwitchC not receiving VTP updates?

Refer to the exhibit. The network administrator has discovered that the VLAN configuration of
SwitchC is not synchronized with the rest of the switched network. Why is SwitchC not receiving
VTP updates?

A.
SwitchA supports a greater number of VLANs than does SwitchC.

B.
SwitchC has fewer existing VLANs than does SwitchA.

C.
SwitchC has a revision number higher than that being advertised.

D.
SwitchC should be operating in VTP server mode to receive VTP updates.

E.
SwitchB is not relaying VTP advertisements to SwitchC.

F.
SwitchB should be operating in VTP server or client mode to relay VTP updates.

Explanation:
VTP revision number is to indicate the modified version that VTP configured is a 32-bit value,
which begins with 0. If VLAN information changes, the revision number will plus 1 until
4294967295. Then circulate and then return 0, re-start and increase.
When the monitoring switch receives notices bigger than the revision number they stored, this
notice will override the stored VLAN information, and thus it is very important to set the added
revision number of the switch to default 0.
To set the revision number to default 0, the following methods may be useD.
1> change the mode of switch VTP to transparent mode, and then return to the server mode
2> make changes to switch VTP domain name, and revert to the original domain name

http://www.cisco.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080094c52.shtml