Which hypersensitivity reaction is termed delayed-type hypersensitivity and is mediated by sensitized T lymphocytes and macrophages?

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Type IV hypersensitivity,or delayed-type hypersensitivity,generally manifests as skin eruptions,such as in poison ivy.Type I hypersensitivity,or immediate-type hypersensitivity,involves drug antigen or allergen binding to IgE antibodies on inflammatory cells.Type II hypersensitivity causes cytolytic reactions,such as hemolytic anemia.Type III hypersensitivity is a reaction in which soluble antibody-antigen complexes are formed and deposited,causing arthralgia,urticarial skin eruptions,and so forth.

Which Hypersensitivity Reaction Is Termed Delayed-Type Hypersensitivity and Is Mediated