My estimate is that the answer is C, AED cost.
Depend in what u get, get a good deal or make sure everything fits correct
The cells in the heart need a constant supply of nutrients / oxygen and to get rid of their waste products ans that why it needs its own special circulatory system.
For substantial health benefits, adults should do at least 150 minutes (2 hours and 30 minutes) a week of moderate-intensity, or 75 minutes (1 hour and 15 minutes) a week of vigorous-intensity aerobic physical activity, or an equivalent combination of moderate- and vigorous-intensity aerobic activity.
I dont have a "scientific" answer for that but I'm pretty sure is it normal :).
Maybe everything in that frappucino such as the milk, cream, flavoring just makes it smell bad.
"Eat a certain food, get a certain smell" !