Making prediction is an important reading comprehension strategy and you need to identify the literary theme in order to do so. The theme is the reason why the author has written the piece; the message the author wants to convey through the story. If you know the theme, you can make prediction about how the story will progress.
In the Happy Prince, the theme is that appearance does not always represent one's true feeling; for example The big metal statue of the Happy Prince “feels” the compassion and sacrifices himself for the oppressed.
You don't know about me, without you have read a book by the name of The Adventures of Tom Sawyer, but that ain't no matter.
It's not a. obviously because he doesn't know that she and her father fought over her not wanting to marry him. It's not b. because he acts like she is already his wife and I quote says "Till then, adieu, and keep this holy kiss." It isn't c. because the whole reason her father insisted he marry her so quickly was because of her deep grieving over "Tybalt", which concludes that the answer is d. (Sorry just wanted to be thorough so you wouldn't be confused.)