Answer:
C.
Step-by-step explanation:
A Script is a piece of writing written in drama format with dialogues between the actors. It also consists of stage directions for the actors as well as directors.
On the day of audition, the document which will ensure smooth auditioning would be the script from which the actors will read their dialogue and act.
The casting director should carry the script of the dialogues of the characters so that when actors perform their act and say their dialogues, she would know if the actor or actress will be suitable for that role or not.
So, the correct answer is option C.