This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunity, Subject name: Pathology
[{'content': 'Erythroblastosis foetalis is an example of which type of hypersensitivity? \nSelect and explain. \nA. Type 1, B. Type 2, C. Type 3, D. Type 4', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Type 2 * Erythroblastosis foetalis is type 2 hypersensitivity reaction between maternal IgG and fetal blood antigen.HYPERSENSITIVITYType I (IgE mediated)Type II (IgG, IgM and complement mediated)* Eczema* Hay fever* Asthma* Atopy* Urticaria* Anaphylactic shock* Acute dermatitis* Theobald smith phenomenon* Prausnitz Kusnter (PK) reaction* Casonis test* Schultz-Dale phenomenon* Blood transfusion reactions* Erythroblastosis fetalis* Autoimmune hemolytic anemia or thrombocytopenia or agrnulocytosis* Pemphigus vulgaris* Good pasture syndrome* Bullous pemphigoid* Pernicious anemia* Acute rheumatic fever* Diabetes mellitus* Graves disease* Myasthenia gravisType III (IgG, IgM, complement and leucocyte mediated)Type IV (T-Cell mediated)* Local-Arthus reaction* Systemic-serum sickness* Schick test* Polyarteritis nodosa (PAN)* Rheumatoid arthritis* SLE* Acute viral hepatitis* Penicillamine toxicity* Hyperacute graft rejection* Type 2 lepra reaction (ENL)* Hypersensitivity pneumonitis* R.A* Infective endocarditis* Henoch schonlein purpura* Glomerulonephritis* Tuberculin test* Lepromin test* Sarcoidosis* Tuberculosis* Contact dermatitis* Granulomatous inflammation* Type I lepra reaction* Patch test* Temporal arteritis* Jones mote reaction (cutaneous basophilic HSN)* Graft rejection* Fairleys test* Fries test", 'role': 'assistant'}]