You say “Char!” and you hear a click. But when you try the door out, it is still locked. Then you feel it before you smell it, the charged ozone smell, the hair on the back of your necks stands up. Then the hair on your head stands up.
Then 500,000 volts shoots out of the hidden electrodes in the wall and electrocute you. The voltage causes the pulp in your teeth to boil and all your teeth pop and the steam from your cranium cracks open your skull, killing you instantly.
You are dead. One of your answers in the last 3 was wrong. Too bad we won’t tell you which one.