Final answer:
The epidermis is composed of stratified squamous epithelium, made up of keratin-producing cells called keratinocytes which form a protective outer layer.
Step-by-step explanation:
The type of tissue that the epidermis is composed of is E) Stratified Squamous Epithelium. The epidermis consists mainly of stacks of keratin-producing epithelial cells called keratinocytes, which comprise at least 90 percent of the epidermis. This layer is characterized by having multiple layers of cells where the basal layer consists of cuboidal cells, and the outer layers are squamous, keratinized cells. Therefore, the entire epithelium can be described as keratinized stratified squamous epithelium, where the apical surface of this membrane is exposed to the external environment and is covered with dead, keratinized cells that help protect the body.