Final answer:
Colored mousses and gels are categorized as Temporary hair colors, which wash out after a single shampoo and do not permanently alter the hair's structure.
Step-by-step explanation:
Colored mousses and gels belong to the d) Temporary hair color category. Temporary hair colors, which include colored mousses and gels, are designed to wash out after only one shampoo and do not chemically alter the hair structure. Unlike permanent hair color, temporary color coats the hair's surface without penetrating the cuticle, allowing for a quick color change that's ideal for one-time events or experimenting with different colors.