There are 2 options:
1) get the normal amount of sleep (7-9 hours) with some naps during the day.
2) Take a few more hours of sleep along with your 7-9 hours.
I believe the best choice is C. This is because an ad's primary purpose is to get as many people to view it as possible. :)
Answer: C. That dog gets fatter every day.
Explanation: All of the other answer choices are redundant; i.e. "most loudest", "more fuller" and "most quickest" do not work.