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
Changes of squamous cell carcinoma are seen in – a) Seborrhoeic keratosisb) Bowen's diseasec) Lichen planusd) DLE 
Select and explain. 
A. abc, B. acd, C. ac, D. bcd
D: bcd
Answer: D: bcd 
Explanation: DLE is a premalignant lesion for SCC of skin.