Which of the following induces a type iii hypersensitivity?
release of inflammatory molecules from mast cells
accumulation of immune complexes in tissues and small blood vessels
destruction of cells bound by antigens
destruction of cells bound by antibodies

Option (2).

Explanation:

Hypersensitivity may be defined as the allergic or auto immune reactions that are produced by the normal immune cells of the body. These reactions generally occur due to over expression of the immune system.

Type III hypersensitivity reaction mainly generated doe to the immune complex disease. Accumulation of immune complexes (antigen and antibody) in small blood vessels and tissues can generate Type III hypersensitivity.

Thus, the correct answer is option (3).

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answer; both surfaces of the membrane are nonpermeable