Respuesta :
Answer:
I think the answer would be a- a cause of his dark times
Explanation:
I chose this answer because a cause is something that leads to an outcome. In this case, the death of Poe's parents may have been a cause to his dark themes. This is supported when he says "...you have touched a string to which my heart fully responds" and "I have many occasional dealings with Adversity- but the want of parental affection has been the heaviest of my trials"
Let me know if this raises any other questions, I'll try my best to answer them :)