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:e20@dca256.test?

A.
52900121

B.
sip:ex90@osl147.local

C.
ex90@osl148.local

D.
172.29.1.221

E.
ex90