Gary Had Spent a Long Time Planning His Speech and Put

Gary had spent a long time planning his speech and put together an impressive slideware program using PowerPoint. Unfortunately, there was a malfunction in the school's IT system on the morning of his presentation, and he wasted fifteen minutes trying to fix the problem instead of using a backup plan. What choice below best describes what was happening?

A) Gary had experienced "death by PowerPoint."
B) Gary was not in control of his visual aids at all times.
C) Gary had not checked that his visual aids were appropriate.
D) Gary had forgotten the "rule of seven."