A server-side program:. a. lives on the user’s computer. b. is a combination of HTML and Secure Sockets Layer (SSL). c. can require many different communication sessions between client and server. d. defines every item on a web page.

The answer is "Option a and Option b"

Explanation:

The server- side programming also known as a client-side program, in which it is the client-run program, which struggles with the design of material on the site. It is the process for user feedback, that communicate with all of the systems, and monitor that information is being served as a reply to the client's request, and the wrong option can be described as follows:

i believe the two important functions that skype uses are nat traversal and user location.good luck        

explanation:

answer; correction;