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: Medicine
Hypercalcemia occurs in which type of lung cancer? 
Select and explain. 
A. Oat cell, B. Giant cell, C. Squamous cell, D. Alveolar cell
C: Squamous cell
Answer: C: Squamous cell 
Explanation: None