During a Classroom Demonstration That Uses a Shared Desktop Program

During a classroom demonstration that uses a shared desktop program, the computer network becomes unavailable. After several attempts to resolve the issue the network remains unavailable. Which of the following is the BEST option to continue with the demonstration?

A) Have the facilities coordinator provide a projector.
B) Continue with the demonstration with all learners looking at the instructor's screen,
C) Continue the demonstration by explaining what is on the instructor's screen.
D) Postpone the class until the network becomes available.