A stratified squamous epithelium consists of cells arranged in layers upon a basal membrane. Only one layer is in contact with the basement membrane; while the other layers are adhered to one another to maintain structural integrity.
This type of epithelium is well suited to areas in the body subject to constant abrasion, as it is the thickest layer. Additionally, this layer can be sequentially sloughed off and replaced before the basement membrane is exposed. It forms the outermost layer of the skin and the inner lining of the mouth, esophagus and vagina. Non-keratinised surfaces must be kept moist by bodily secretions to prevent them from drying out. Examples of non-keratinized stratified squamous epithelium include cornea, lining mucosa of the oral cavity, esophagus, anal canal, vagina and the internal portion of the lips.
Hence the correct option is C.