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: Skin
Which of the following is not included in the triad of Reiter's syndrome : 
Select and explain. 
A. Conjunctivetis, B. Urethritis, C. Ahritis, D. Keratoderma blenorrhagica
D: Keratoderma blenorrhagica
Answer: D: Keratoderma blenorrhagica 
Explanation: D. i.e. Keratoderma blenorrhagica