Read the excerpt from The Tell-Tale Heart by Edgar Allan Poe Hearken! and observe how healthy how calmly I can tell you the whole story it is impossible to say how the first idea entered my brain but once conceived it haunted me day and night object there was none passion there was none I love the old man he it had never wronged me he had never given me insult for his gold I had no desire.

which literary technique is used in the excerpt?
a. foreshadowing
b. flashback
c. symbolism
d. Flash Forward​