Beloved is the masterpiece ofA．Toni Morrison.B．Ralph Ellison.C．John Dos Passos.D．Willa Cat

Beloved is the masterpiece of

A．Toni Morrison.

B．Ralph Ellison.

C．John Dos Passos.

D．Willa Cather.

请帮忙给出正确答案和分析，谢谢！