Which of the following are the three primary types of hair texture?

The correct answer identifies the three primary types of hair texture as straight, wavy, and curly. These classifications are based on the natural pattern of the hair's wave and curl, which is determined by the shape of the hair follicle and the way the hair strands grow. Straight hair lacks any wave or curl, wavy hair has a body or soft wave formation, and curly hair exhibits a more pronounced curl pattern. Understanding these textures is fundamental in cosmetology, as different hair types require different techniques for cutting, styling, and maintaining.

The other choices do not represent hair texture. One option focuses on the thickness of the hair strands (fine, medium, and coarse) rather than the hair's physical shape or wave pattern. Another option categorizes hair based on its moisture levels (dry, oily, and normal), which pertains to the condition rather than the texture. The last option addresses hair length (long, short, and medium), which is also unrelated to its texture. Recognizing texture is crucial for professionals since it influences product choices and styling methods.