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
The below skin sign is associated which of the following malignancy 
Select and explain. 
A. Gastric adenocarcinoma, B. Neuroendrocrine tumour, C. Basal cell cancer, D. Lung cancer
D: Lung cancer
Answer: D: Lung cancer 
Explanation: The above image shows roughening of palms i.e tripe palms associated with underlying lung cancer.