When viewing the configuration of Intercluster Lookup Service, this command is used to look up the URl of a remote cluster user:
Admin:utils ils lookup user1@ciscoexam.online Routing string is cucm1.cisco.com
Which configuration is required on Cisco Unified Communications Manager, in order to allow routing calls to the URl of this remote cluster user?

A.	SIP route pattern for domain*.ciscoexam.online
B.	SIP trunk with destination cucm1.cisco.com
C.	end user with directory URl user1@ciscoexam.online
D.	SIP route pattern for domain*cisco.com