Which of these elements could not be found in a tiring house?

The stage wall structure contained at least three doors which lead to a leading to small structure, back stage, called the ' Tiring House '. The stage wall was covered by curtains allowing entrances from left, right and center. The actors used this area to change their attire.

➕❎➕➕➖➗❌✖✔❗❗❗❗❗❗i dont understend you

i think the answer is c