Answer:
The correct answer is letter A. To help save the day, Harry must get past a scary three-headed guard dog.
Explanation:
The three-headed guard dog from "Harry Potter and the Sorcerer's Stone" was influenced by a mythological creature from Ancient Greece. Cerberus was a three-headed dog that guarded the Underworld to keep the souls from leaving. There are descriptions that depict Cerberus as having a serpent for a tail. In different stories, several details concerning the hound can be found to vary, including the number of heads; but the most common number is three. In the Harry Potter book, the dog is guarding the entrance that will lead to where the Sorcerer's stone is.