Epidermis of the skin of vertebrates comprises stratified epithelium. Stratified epithelia are cover the exterior body surfaces and lining portions of the body tracts, where friction occurs. A multilayered epithelium allows deeper cells to replace the most superficial cells, as they are damaged or cast off from the epithelial surface.

Structure of the Epidermis
The epidermis is the outermost layer of the skin in vertebrates. It is composed of several layers of cells that provide protection to the underlying tissues and organs. The epidermis is primarily made up of epithelial cells, which are specialized cells that line the surfaces of organs and body cavities.

Types of Epithelium in the Epidermis
The epidermis of the skin in vertebrates is primarily composed of stratified epithelium. This type of epithelium consists of multiple layers of cells, with the outermost layer consisting of dead cells filled with keratin. The presence of keratin gives the skin its strength and waterproofing properties.

Function of Stratified Epithelium in the Epidermis
The stratified epithelium in the epidermis serves several important functions, including:
1. Protection: The multiple layers of cells in stratified epithelium provide a physical barrier to protect the underlying tissues and organs from injury, pathogens, and UV radiation.
2. Waterproofing: The presence of keratin in the outermost layer of stratified epithelium prevents water from entering or leaving the body through the skin.
3. Sensation: The stratified epithelium contains sensory receptors that allow us to perceive touch, pressure, temperature, and pain.

Other Types of Epithelium in the Epidermis
While the majority of the epidermis is composed of stratified epithelium, there are also other types of epithelium present in specific regions of the skin. These include:
1. Simple Epithelium: Found in areas such as the sweat glands and sebaceous glands, where a single layer of cells is sufficient for their function.
2. Transitional Epithelium: Found in the urinary bladder, ureters, and urethra, where it allows for stretching and contraction.
3. Columnar Epithelium: Found in the lining of the respiratory tract and the digestive tract, where it aids in absorption and secretion.

Conclusion
In conclusion, the correct answer to the question is option B, stratified epithelium. The epidermis of the skin in vertebrates is primarily composed of stratified epithelium, which provides protection, waterproofing, and sensation. While other types of epithelium, such as simple, transitional, and columnar, are present in specific regions of the skin, they are not the primary component of the epidermis.