1. Which one of the following is NOT associated with type IV hypersensitivity reaction? Select one: a.  plays a crucial role in our body's ability to fight various intracellular pathogens b. Involves CD8+Tcells, CD4 TH1 cells, macrophages activation c. one of the mechanisms that causes tissue injury and disease in response to antigens d. antibody-mediated response e. Involves cytokine-mediated inflammation in tissue f. takes several days to develop

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Defense Mechanism

Circumstances influence and compel people to behave in a certain way. One such behavior is a defense mechanism. It is employed by people to escape from unpleasant circumstances, thoughts and actions. Defense mechanisms are, thus, psychological strategies that help to avert and avoid unwanted feelings such as guilt or shame and situations such as threat and danger.