Final answer:
The epidermis is composed of five layers: stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum. The right answer to the student's question is option C. 5.
Step-by-step explanation:
The epidermis is made of five layers, which include the stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum. The stratum basale is the deepest layer and consists of a single layer of basal cells, which are cuboidal-shaped stem cells. This layer is followed by the stratum spinosum, stratum granulosum, stratum lucidum (primarily found in thick skin such as the palms and soles of feet), and the stratum corneum, which is the outermost layer of the epidermis. These layers work together to form the protective outer barrier of the body. It is essential to note that although our skin has three general layers (epidermis, dermis, and hypodermis), the epidermis itself specifically has five distinct layers. Option 5.