This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
[{'content': 'Effacement of foot processes is pathognomic OF which disease \nSelect and explain. \nA. minimal change disease, B. Stenoid resistant glomerulonephritis, C. Membranous glomerulonephritis, D. IgA nephropathy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In minimal change disease histopathology is normal while electron microscopy is pathognromic which shows loss or effacement of podocyte foot processes REF : ROBBINS 10TH ED', 'role': 'assistant'}]