Which SIP URI should be dialed in order to reach the endpoint that is registered with the IP address of 172.29.1.221 from another endpoint with a URI of sip:[email protected]?

Refer to the exhibit.

Which SIP URI should be dialed in order to reach the endpoint that is registered with the IP
address of 172.29.1.221 from another endpoint with a URI of sip:[email protected]?

A.
52900121

B.
sip:[email protected]

C.
[email protected]

D.
172.29.1.221

E.
ex90