Genitals, lips, mouth, or anus: skin rash, sore, fatigue, discharge.

• A. Genital herpes
• B. HPV
• C. Chlamydia
• D. Syphilis

Answer: (D)

Syphilis can present with signs at multiple body sites and as systemic symptoms, which matches this description. A chancre, the initial sore, often appears at the infection site—genital, oral, or anal. If untreated, it can progress to secondary syphilis, where a widespread skin rash commonly develops (often on the hands and feet) and mucous patches can appear in the mouth, throat, or genital/anal areas, along with fatigue and other general symptoms. This combination of a sore, a rash across different sites, and systemic symptoms fits syphilis better than the others, which tend to show more localized or different patterns (herpes with painful ulcers; HPV with warts; chlamydia or gonorrhea with discharge as a primary feature).