Which of the Following Is NOT the Responsibility of the Stage

Which of the following is NOT the responsibility of the stage manager?

A) taking meticulous notes regarding actors' movement and placement during blocking/staging rehearsals
B) distributing rehearsal notes after each rehearsal to all members of the production team indicating any new production changes, questions, or needs
C) discovering promising new plays and working with playwrights on developing their scripts
D) after the official opening, maintaining consistency of the director's vision