This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Medicine
Good-Pasture Syndrome is syndrome is characterized by - 
Select and explain. 
A. Anti GBM antibody, B. Crescents, C. Pulmonary haemorrhage, D. Diffus alveolar damage
A: Anti GBM antibody
Answer: A: Anti GBM antibody 
Explanation: Goodpasture syndrome (GPS), also known as anti-glomerular basement membrane disease, is a rare autoimmune disease in which antibodies attack the basement membrane in lungs and kidneys, leading to bleeding from the lungs and kidney failure. Ref Harrison20th edition pg 299