This question has options. Select from options: Read this fact: "when a gas in an open container evaporates, that gas spreads out into the air"

Now answer this question: "Which of these is the most likely to result in a trip to the hospital?"

OPT:
(I). a flashback explosion inside a container
(II). watching a television drama about heart attacks
(III). filling a bucket of water with a hose
(IV). eating waffles that are just the right temperature
(I).