Answer: A - The client is most likely infected with Neisseria gonorrhoeae. N. gonorrhoeae is a bacterium that can be treated and eliminated by antibiotic therapy. Clients with gonorrhea are usually prescribed penicillin, and a repeat culture verifies whether or not the causative agent has been eliminated. Treponema pallidum is the causative agent for syphilus. It is a bacterium that is treated with antibiotics; however, the response to therapy is determined by a dark microscopy test. HSV 1 and 2 are viruses. They are not curable. HSV 1 and 2 are managed by supportive therapy.