Question: In class we discussed that major histocompatibility complexes (MHC's) are the protein product of genes that have the same name. What role do MHC's play in immunity? Need Assignment Help? Group of answer choices They are proteins. They help the innate immune system recognize pathogens. They present self-proteins to activate T-cells and B-cells. None of the answers are correct They present non-self proteins to activate B-cells and T-cells