From just reading it, there are a couple things that it could be. The simplest of which is humor. Verbal Irony could also work
Gravity, but if you think about it, air resistance can slow the object down, thus meaning that there are 2 forces acting on the object, but just go with gravity
The answer is D. Old habits die hard
The answer is D, as it describes to us on how you feel when u have a puppy for the first time.
