Client makes a Web request to a Web Server, and ProxySG is using ProxyAV in RESPMOD

mode. Which devices are involved before the request reaches the original destination Web
server?

A.
Client, (2) ProxySG, (3) ProxyAV, (4) ProxySG, (S) Web server

B.
Client, (2) ProxySG, (3) ProxyAV, (4) Web server

C.
client, (2) ProxySG, (3) Web server

D.
(l) Client, (2) ProxyAV, (3) ProxySG, (4) Web server

Explanation: