A 25 year old male comes to the clinic complaining of a sore…

A 25 year old male comes to the clinic complaining of a sore on his penis. He is unsure if it started like a blister but he picked at it.  He says it’s not painful. He engages in intercourse with men and women and is inconsistent in his use of condoms.    1-What are the two most likely causes of  sexually transmitted lesions on the genitals? (1 points) 2- Describe which STI is most likely based on the clinical findings and explain why you made this choice (One sentence max).  (2 points) 3- What diagnostic test would you send off to confirm the diagnosis. Include screening and confirmatory tests if applicable (2 points)