This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Which among the following is the epithelial lining of vagina? 
Select and explain. 
A. Stratified squamous non-keratinized, B. Columnar, C. Stratified squamous keratinized, D. Cuboidal
A: Stratified squamous non-keratinized
Answer: A: Stratified squamous non-keratinized 
Explanation: There are two types of stratified squamous epithelia: nonkeratinized and keratinized. Nonkeratinized epithelium exhibits live surface cells and covers moist cavities such as the mouth, pharynx, esophagus, vagina, and anal canal. Keratinized epithelium lines the external surfaces of the body.