This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Disorders affecting Glomerulus, Subject name: Pathology
Kidney biopsy from a child with hemolytic uremic syndrome characteristically most likely presents features of: 
Select and explain. 
A. Thrombotic microangiopathy, B. Proliferative glomerulonephritis, C. Focal segmental glomerulosclerosis, D. Minimal change disease
A: Thrombotic microangiopathy
Answer: A: Thrombotic microangiopathy 
Explanation: Thrombotic microangiopathy encompasses a spectrum of clinical syndromes that includes TTP and HUS. Insults that lead to excessive activation of platelets, which deposit as thrombi in small blood vessels.