This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
What type of hypersensitivity reaction is seen in myasthenia gravis? 
Select and explain. 
A. Type 1 hypersensitivty reaction, B. Type 2 hypersensitivty reaction, C. Type 3 hypersensitivty reaction, D. Type 4 hypersensitivty reaction
B: Type 2 hypersensitivty reaction
Answer: B: Type 2 hypersensitivty reaction 
Explanation: Type 2 hypersensitivity reactions: My - Myasthenia gravisBlood - blood transfusion reactionsGroup- Goodpasture syndrome and Graves diseaseIs - Insulin resistant DM, ITPR - Rheumatic feverH - hyperacute graft rejectionPositive - pernicious anaemia & pemphigus vulgaris Ref : Ananthanarayana textbook of Microbiology 9th edition Pgno : 162,165