Final answer:
The olfactory receptors would be most useful in alerting you to the gas in your enclosed kitchen.
Step-by-step explanation:
The correct answer to the question is D. Olfactory receptors would be most useful in alerting you to the gas. Olfactory receptors are responsible for our sense of smell, and they can detect the presence of gas molecules in the air, such as the gas leaking from the stove.
When gas is released, it produces volatile compounds that can stimulate the olfactory receptors in our nose. These receptors send signals to the brain, which is then interpreted as the sensation of smell. Therefore, if you forgot to turn off your gas stove and the gas is enveloping your enclosed kitchen, your olfactory receptors would detect the gas and alert you to the presence of a potential danger.