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: Dental
Masticatory mucosa is: 
Select and explain. 
A. Para keratinised, B. Ortho keratinised, C. Non keratinised, D. Sub keratinised
B: Ortho keratinised
Answer: B: Ortho keratinised 
Explanation: None