A is the best answer. I am very familiar with Poe's work and its the best choice to use to make it look like you understand the material.
His agony could be a metaphor for something deeper, or he could have a different life than the one that you have already made up for him in your own mind. He could be in actual physical pain, or it could just be his mind.
A complex sentence can be created by adding an incomplete thought to a complete thought. It can also be created by taking two simple sentences and making one into a big sentence, which would be half a paragraph. I honestly, don't always write correctly so I use Grammerly. My whole class uses it. This sounds as if I'm advertising, but I'm not.
I believe that the answer to the question provided above is that Gandhi has made Snow realize the he was right. And it changed his perspective of him.
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.