Hope this helps but I think the answer is B.
First of all, you should know that interpreting poetry is a subjective activity, so there isn't only one correct answer.
But I can give you my interpretation:
The title is unusually long, and it explains the content of the poem - which is also unusual.
I think that it's effective in attracting attention to the poem and in emphasizing the shocking content of the poem.
Answer: Logos are the picture/design of an company. Every company has a logo. The study of logos is iconology.
Hope this helps you!