99. A 55-year-old man comes to the physician because of a rash on his face and body 2 weeks after undergoing allogeneic hematopoietic cell transplantation for multiple myeloma. Physical examination shows a maculopapular rash over the cheeks, upper trunk, and palms. Histologic examination of a section of this patient's affected skin is most likely to show basal keratinocytes undergoing which of the following processes? A) Apoptosis B) Hyperplasia C) Hypertrophy D) Metaplasia E) Necrosis

99. A 55-year-old man comes to the physician because of a rash on his face and body 2 weeks after undergoing allogeneic hematopoietic cell transplantation for multiple myeloma. Physical examination shows a maculopapular rash over the cheeks, upper trunk, and palms. Histologic examination of a section of this patient's affected skin is most likely to show basal keratinocytes undergoing which of the following processes? A) Apoptosis B) Hyperplasia C) Hypertrophy D) Metaplasia E) Necrosis