Before a hair pressing service, the hair must be __________.

The correct choice is to analyze the hair before proceeding with a hair pressing service. Analyzing the hair allows the cosmetologist to assess its texture, condition, and overall health. This evaluation is crucial because it informs the stylist about the appropriate products and techniques to use during the pressing service. For example, understanding whether the hair is fine, thick, or damaged can influence decisions regarding the temperature of the pressing iron and the use of heat protectants.

Analyzing the hair also helps in identifying any previous chemical treatments, such as coloring or relaxers, which may affect how the hair reacts to heat. This process ultimately ensures that the service is performed safely and effectively, reducing the risk of damage and achieving the desired results for the client.

While options like washing, styling, or brushing the hair may be part of the overall preparation process, they do not provide the necessary information to perform the hair pressing service correctly and safely.