“Harlem”, also known as “A Dream Deferred” by Langston Hughes.
It describes how, during a ceremony at the round house, Vince Madwesin, the tribal policeman, was serving off-duty as a security guard. When Vince found some attendees drinking, he asked them to leave out of respect for the ceremony. One of the drinkers stumbled away and was later found dead from choking on his vomit.
D, there is a dense,positively charged mass in the center of an atom