The answer is c established that no one, not even a king, is above the law
Speech balloons, also known as speech bubbles, dialogue balloons or word balloons, are a graphic convention used most commonly in comic books, comics and cartoons to allow words to be understood as representing the speech or thoughts of a given character in the story or events of the graphic novel or Comic.
According to the information presented before I would conclude that the main purpose of a speech bubble in a graphic novel is:
D) It illustrates internal thoughts.
The theme of the Odyssey was perseverance. Odysseus was loyal was to his wife when Circe had offered her to him as a wife.