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: Pathology
Which of the following is not present in lungs? 
Select and explain. 
A. Clara cells, B. Langerhans cells, C. Brush cells, D. Klutischky cells
B: Langerhans cells
Answer: B: Langerhans cells 
Explanation: None