Which of the following are obvious advantages of having a ProxySG deployed in a Reverse Proxy environment? (Choose all t

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Which of the following are obvious advantages of having a ProxySG deployed in a Reverse Proxy environment? (Choose all that apply)
(a)The ProxySG has built in DOS protection to guard the actual web server from denial-ofservice attacks
(b) Increased performance with caching provides an improved Web Experience
(c) Consistent default behavior of cache expiration and validation directives
(d) SSL termination on ProxySG allow SSL offloading, therefore eliminating bottleneck on the web server side.

A. All of the above
B. a, b & c only
C. a, b & d only
D. b, c & d only