You are answering a USMLE-style medical question. Question: A 5-year-old boy is brought to his pediatrician’s office by his parents after they noticed blood in his urine. The child has been complaining of difficulty in passing urine and has lower abdominal pain. He seems more bloated than usual. On some occasions, he starts crying while passing urine, primarily because of a burning sensation. A urinalysis is performed, and the results are as follows: Urine pH 6.2 Urine specific gravity 1.010 Glucose Negative Ketones Negative RBCs 1-2/hpf WBCs 0-1/hpf Casts 2-3/hpf The pediatrician believes the boy has a bladder infection with a double-stranded DNA virus. Which of the following conditions is also commonly associated with this viral infection? Options: A) Gastroenteritis B) Painful dermatomal vesicles C) Lymphadenopathy D) Vesicular rash Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.