Refer to the exhibit. An Expressway-C and Expressway-E are configured for B2B calling and the Expressway-E zone is set to TLS Verify Currently, calls do not reach the Expressway-C. The Traversal Client zone on the Expressway-C for B2B reports the information in the exhibit for the Peer 1 address.
Which action resolves this error?
A. Configure the Expressway-C Traversal Client zone Peer 1 address with the fully qualified domain name of the Expressway-E.
B. Configure the Expressway-C Traversal Client zone transport protocol with TCP.
C. Add a server certificate to the Expressway-C that is signed by a certificate authority.
D. Add an intermediate certificate to the Expressway-C that is signed by a certificate authority.
Answer is C
I think the answer is C