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: Physiology
About type-II pneumocytes, which is not true: 
Select and explain. 
A. Do not secrete surfactant, B. Mesodermal, C. Form blood air barrier, D. Appear at 5th month of intrauterine life
A: Do not secrete surfactant
Answer: A: Do not secrete surfactant 
Explanation: Do not secrete surfactant