Which room in the Thermae served as the dressing room?

• A. Apodyteria
• B. Unctuaria
• C. Tepidarium
• D. Sudatorium

Answer: (A)

The dressing room in a Thermae is the apodyterium. This is the space where bathers undressed and stored their clothes before entering the baths itself. It was equipped with benches and hooks, and often a steward or attendants helped with changing, making it distinct from the other rooms that served heating, bathing, or oiling.

To place it in context, after entering the thermae, bathers would move through rooms with specific purposes: the tepidarium provides a warm, acclimating environment; the sudatorium is the sweating room; and rooms like the unctuarium are associated with applying oils or cosmetics. None of those are primarily for dressing, which is the role of the apodyterium.