It would be <span>"D. Les"</span> Almost always, titles of books, plays, movies, etc. are capitalized. The fact that it's in quotations is irrelevant. Also the fact that it is in French is irrelevant.
Having tried to communicate with it, Horatio has the guards spear the ghost of King Hamlet but they are of course unable to hurt it. Finally, the ghost leaves and they hold a prayer and Horatio decides to tell prince Hamlet about the ghost in order to have him speak with it and found out what it is and what it wants.
The first-person narrative allowed the reader to better understand the feelings of the interlocutor.
In the example, it shows a sense of frustration, anger and injustice that black people felt in the context of racial segregation, when blacks were marginalized in a racist social hierarchy, which denied the equal participation of blacks.
