C. (Sorry if I’m not right!)
Americans With Disabilities Act. It's the reason you'll see buildings and bathrooms and any number of other things labelled "ADA Accessible."
The imagery that Poe uses to help you hear, see, smell, and feel the sensations of being buried alive is like I could feel myself gasping for air as he described this scene to me. I could see myself in the middle of tons of dirt, smelling the dust. I could hear the dirt getting piled on top of me.