This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
A 7-year-old child presents with a non-blanching rash over the extensor aspect of legs with swelling over the knee. Urine analysis shows proteinuria + and hematuria +++. On kidney biopsy which finding will be most commonly seen - 
Select and explain. 
A. Fusion of podocytes, B. Acute tubular necrosis, C. Deposition of IgA, D. Thickened basement membrane
C: Deposition of IgA
Answer: C: Deposition of IgA 
Explanation: Ans-C