This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skin tumors, Subject name: Dental
Stage 1 cutaneous T cell lymphoma treatment is - 
Select and explain. 
A. PUVA, B. Biological response modifiers, C. Systemic chemotherapy, D. Extracorporial photopheresis
A: PUVA
Answer: A: PUVA 
Explanation: Potent topical coicosteroids . Narrow band UVB . Psoralens+ PUVA is the treatment. Systemic chemotherapy and biological response modifiers are used in stage 3. From illustrated synopsis of dermatology and sexually transmitted diseases neena khanna 5th edition page no 406