【单选题】Theatrical art forms in many other countries do not present singing, dancing and spoken parts in one single drama. An opera singer, for example, neither dances nor speaks on stage; there are no singin...
A.
It has one opera singer on stage.
B.
It has one dancer who has no speaking role.
C.
It has already spread to many other countries.
D.
It includes spoken parts, singing dancing and acrobatics.