Which of the Following Is True About the Status of the Kabuki

Which of the following is true about the status of the kabuki play script?

A) Most have a single author from a select family who has handed down the tradition of writing for twenty generations.
B) Most have multiple authors,some of them anonymous,and almost all incorporating improvisations and alterations that actors have interpolated over the years.
C) Most have a single author who acquires experience through a system of open submissions and competitions.
D) Most are co-authored by two to six members of different guilds who collaborate to produce a piece that accurately represents all castes in the drama.