All are type-II hypersensitivity reaction except ?
Hemorrhagic disease of newborn
Graves disease
Autoimmune disease
Hemolytic anemia
Ans. is 'a' i.e., Hemorrhagic disease of newborn Graves disease, Autoimmune hemolytic anemia are type II hypersensitivity reactions. Hemorrhagic disease of newborn is due to vitamin K deficiency.