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
Noninfective cause of genital ulcer is - 
Select and explain. 
A. Behcets disease, B. Hansen's disease, C. Ramsons's disease, D. Syphilis
A: Behcets disease
Answer: A: Behcets disease 
Explanation: Bechet's disease is characterized by a triad of recurrent oral ulcers (aphthous ulcers), recurrent genital ulcers and uveitis.
Important non-infective causes of genital ulcer are Trauma, Bechet's disease, Stevens-Johnson syndrome and carcinoma.