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
PTH like substance is produced by which type of lung malignacy - 
Select and explain. 
A. Squamous cell carcinoma, B. Oat cell carcinoma, C. Adeno carcinoma, D. Large cell carcinoma
A: Squamous cell carcinoma
Answer: A: Squamous cell carcinoma 
Explanation: ACTH & ADH → Small cell carcinoma (predominantly)
PTH               → Squamous cell Ca