A client is noted to have multiple soft warts on their perineum and rectal areas. The nurse suspects that this client is infected with which of the following sexually transmitted infections?

Rationale: A. HIV infection does not typically cause localized soft warty lesions; it may predispose to more severe or widespread HPV lesions but is not the direct cause. B. Human papillomavirus (HPV) commonly produces multiple soft, flesh-colored or cauliflower-like warts (condylomata acuminata) on the perineum and perianal/rectal areas — this is the most likely diagnosis. C. Syphilis (secondary stage) can produce moist, wart-like lesions called condylomata lata in the genital/perineal area, but those are usually broader, flatter, and associated with systemic signs; the classic “soft warts” description more closely fits HPV. D. Trichomoniasis typically causes vaginal discharge and vulvovaginal irritation, not discrete warty lesions.