Crepe hair is utilized for which of the following purposes in make-up?

Crepe hair is specifically designed for use in theatrical makeup to create realistic facial hair such as eyebrows, moustaches, and beards. It is made from synthetic fibers that mimic the texture and appearance of real hair, allowing performers to enhance their characters convincingly. By using crepe hair, makeup artists can craft detailed and dramatic facial features that add authenticity to characters, which is crucial in performance settings.

While the other options relate to aspects of makeup and hairstyling, they are not the primary uses of crepe hair. For example, eyelashes and wigs typically require different materials for realism and style, and hiding hairline imperfections involves other techniques or products that are better suited for that purpose. Thus, the application of crepe hair is tightly focused on the addition of faux hair elements that complement a performer’s character portrayal.