Red Seal Hairstylist Practice Exam

Texture services, such as perming or relaxing, are specifically designed to alter the natural texture of the hair, either by adding waves or curls or by straightening it. Option C is the most appropriate answer because these services can indeed add volume to fine hair or create a smoother appearance by reducing frizz in curly or wavy hair. By altering the hair's structure, texture services can provide desired styling versatility, making hair look fuller or sleeker.

Regarding the other options, while texture services might have indirect effects on other attributes, they do not primarily serve those purposes. For example, they do not intentionally make hair lighter; rather, they can sometimes alter the way light interacts with hair but do not change the color itself. Additionally, these services might not necessarily facilitate easier brushing; in some cases, they can make hair more challenging to manage unless specific care routines are followed. Lastly, texture treatments do not change hair color permanently; that is the domain of color treatments, which are a separate process.