What command best describes how to enable Kerberos? | Sharepoint 2010

A. cscript c:\inetpub\admin\adsulti.vbs set W3SVC/<id>/root/NTAuthentication Providers "Negotiate, NTLM"
B. cscript c:\inetpub\admin scripts\adsulti.vbs set W3SVC/<id>/root/NTAuthentication Providers "Negotiate, NTLM"
C. cscript c:\inetpub\admin scripts\adsutil.vbs set W3SVC/<id>/root/NTAuthentication Providers "Negotiate, NTLM"
D. script c:\inetpub\admin scripts\adsulti.vbs set W3SVC/<id>/root/NTAuthentication Providers "Negotiate, NTLM"

Ans: C