A 35-year-old man has noted a bump on his upper trunk for the past 6 weeks. On physical examination, there is a solitary, 0.4-cm, flesh-colored nodule on the upper trunk. The dome-shaped lesion is umbilicated, and a curdlike material can be expressed from the center. This material is smeared on a slide, and Giemsa stain shows many pink, homogeneous, cytoplasmic inclusions. The lesion regresses over the next 2 months. Which of the following infectious agents most likely produced this lesion?
□ (A) Human papillomavirus
□ (B) Staphylococcus aureus
□ (C) Molluscum contagiosum
□ (D) Histoplasma capsulatum
□ (E) Varicella-zoster virus
