Because you need to make sure that your dishes and things are clean, and not dirty, so you can use them again and all that.
What are the answer choices?
Answer: D. Severe
Explanation: The person who answers 'yes' to the question definitely has severe food insecurity because, it is a period of 12 months and not eating for a whole day is not such a bad thing. Fast does help the body in tremendous ways like weight loss, improved blood sugar control and so on.
I would say bicycling because jogging and jumping jacks can be bad on your knees because of the impact. Biking is pretty smooth though and wouldn't have much of an impact. Hope this helps :)