The correct answer is D.
An interpretation is an explanation or a way of explaining something. In answer D, both directions are interpreting on the own way, the source of Hercules's strength.
For one of them, it comes from a magical spell, while for the other, his strength is the product of hard work and long hours of training. These are both valid and artistic interpretations of an ancient, greek story.
B.)
The 2 sentences should be turned into one because if the last sentence is left like that, it would be called a fragment/incomplete sent.
A square is to a plane as a cube is to a volume
