Cisco switch – How to find the VTP server from the VTP Client?

I had a question on the CCNA exam that I didn’t know how to find: I was given a diagram of a switch network and 1 of the 5 questions asked “Which switch is the VTP server.” I only had access to a console connected to one of the VTP Clients so I ran “Sho VTP status”. However, I did not see anywhere that it would tell me which switch in the network is acting as the vtp server. Any ideas how I could have figured that out?