6. Read this sentence: "William Shakespeare gave theatre some of its most famous heroines: Cleopatra, Juliet, Rosalind, Desdemona. But who was playing them on stage in his lifetime? Not female actors, but young boys!" What does the word "stage" mean above?
A. the main character in a book or play
B. the place where a play is performed
C. a country ruled by a king or queen
D. a person who performs in front of others