Regarding hypersensitivity reactions

• A. In anaphylaxis, IgE is bound to mast cells by their Fab portions to release vasoactive amines
• B. Goodpasture s syndrome is an example of type III hypersensitivity reaction
• C. Farmer s lung is a type III reaction to micropolyspora species
• D. Delayed hypersensitivity is mediated by macrophages
• E. The Mantoux reaction is a form of contact hypersensitivity