Final answer:
The part-time employees are most likely to be involved in the Sales and Marketing area of the real estate business.
Step-by-step explanation:
The part-time employees hired by the principal real estate broker are most likely to be involved in the Sales and Marketing area of the real estate business.
These employees are responsible for showing property, passing out brochures, quoting prices, and stating terms of the sale, which are all tasks involved in the sales and marketing process.
By engaging in these activities, the part-time employees help generate interest and attract potential buyers, ultimately facilitating the sale of real property in the development.