Answer:
B: madness, insanity, and murder.
Explanation:
The Tell-Tale Heart was a short story written by Edgar Allan Poe in 1843 which had the major themes like; madness & insanity, guilt, effect of time on his psyche all tending towards topic of killings/murder.
Looking at the options given, the correct one is Option B.
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.
Answer: A and C
Explanation: This is because there is no evidence for the other two answers.
The correct answer is D
hope this helped :)