When making a call to a MRA client, what are the combinations of protocol on each of the different sections A-B-C?

Refer to the exhibit. When making a call to a MRA client, what are the combinations of protocol on each of the different sections A-B-C?
A. SIP TCP/TLS (A) + SIP TLS (B) + SIP TLS (C)
B. SIP TCP/TLS (A) + SIP TCP/TLS (B) + SIP TCP/TLS (C)
C. IP TCP/TLS (A) + SIP TCP/TLS (B) + SIP TLS (C)
D. SIP TLS (A) + SIP TLS (B) + SIP TLS (C)