Which of the following playwrights is considered a major figure of Greek theater?

Aeschylus is considered a major figure of Greek theater because he is often referred to as the "Father of Tragedy." He was one of the earliest playwrights in ancient Greece and is known for significantly contributing to the development of drama. His work introduced elements like the second actor, which allowed for conflict and dialogue, enhancing the storytelling aspect of theater. Aeschylus's plays often dealt with complex themes, including fate, justice, and the human condition, and many of his works, such as the "Oresteia" trilogy, are still studied and performed today. His influence laid the groundwork for future playwrights and the evolution of theatrical form and content. In contrast, the other playwrights listed—William Shakespeare, Tennessee Williams, and Arthur Miller—are known for their contributions to English-language theater and modern drama, respectively, rather than Greek theater.