<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 48-year-old man comes to the physician because of a 2-day history of fever, flank pain, and hematuria. He has chronic back pain, for which he has been taking meloxicam for the past 2 weeks. His temperature is 38.9C 102F. Physical examination shows a diffuse maculopapular rash over his trunk and extremities. Urinalysis shows 1015 RBChpf, 20 WBChpf, and numerous eosinophils. Histologic examination of a kidney biopsy specimen is most likely to show which of the following findings?? A: Mesangial IgA deposition, B: Glomerular crescent formation, C: Interstitial T-cell infiltration, D: Papillary necrosis, E: Cortical cyst formation,  <response>: This is a clinical vignette describing a 48-year-old man with fever, flank pain, hematuria, and rash after recently starting meloxicam. The key findings are fever, hematuria with RBCs and WBCs on urinalysis, and eosinophils on urinalysis after starting meloxicam 2 weeks ago. This clinical presentation is most consistent with acute interstitial nephritis AIN, which is often caused by medications like NSAIDs. AIN leads to interstitial inflammation and edema, resulting in hematuria and eosinophiluria. The correct answer will show interstitial inflammation and edema on kidney biopsy, rather than other glomerular or structural abnormalities.C: Interstitial T-cell infiltration 