Answer:
D all of the above
Step-by-step explanation:
These playwrights are all famous writers of the early-mid 20th century who wrote realistic dramas, often tragic, to display the failings of the world. All are contemporaneous.
Hansberry is best known for A Raisin in the Sun, a masterpiece about blacks in America.
Williams wrote prolifically, but Cat on a Hot Tin Roof is one of his most well-known.
O’Neill wrote such works as The Iceman Cometh and Long Day’s Journey Into Night, both philosophical in nature, meant to expose the vices of modern society.