You work as a network consultant at YourDomain .com. YourDomain has decided to provide distance-learning using the Internet Protocol videoconferencing (IP/VC) technology.
What could YourDomain use this system for?

A.
To allow students who missed a class to access archived education lectures recorded by YourDomain instructors.

B.
To deliver a message from the YourDomain CEO to all staff on the first day of the semester.

C.
To allow MCSE certified YourDomain instructors answer questions from students in a MCP course.

D.
To deliver an interactive program from a traveling scholar attending a conference on the main YourDomain campus to students at multiple locations.