i believe the answer is B. According to ars.usda.gov "Solid fats are solid at room temperature, and added sugars are those added to foods—they are nicknamed "SoFAS" by some nutritionists. These SoFAS are also known as "empty calories," according to the 2010 Dietary Guidelines for Americans (DGAs), because they provide few or no nutrients yet are high in calories." Since these are "empty calories" that means that they are high in calories and low in nutrients.
Well, if you are able to put it in your own words, centuries back, when are ancestors were alive, we didn’t have things like McDonald’s. For a lot of people back then, they wouldn’t eat for a day or two then find a buffalo or something then eat it, and most of the time, they were running all day every day trying to find food. Getting lots of exercise. Nowadays, u can get into your car, and drive to A fast food place and get whatever u want. With no exercise.
Eating sugary foods once in a while.
This is balance
When your muscles are sore it can mean you worked it out, but also can mean other things like straining. If you feel a tight sensation when moving your body. It means you have worked on that area well! :}