8. In which of the following cell mediated immunity (CMI) participates?
A.Delayed hypersensitivity reaction
B.Graft versus host reaction
C.Allograft rejection
D.All of the above

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9. Overactivity of Th cells may result into
A.autoimmunity
B.optimal antibody response
C.optimal cell-mediated response
D.none of the above

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