<prompt> The protective effects of breast milk are known to be associated with:IgM antibodiesLysozymeMast cellsIgA antibodies  <response>: d. IgA antibodiesRef: Nelsons 20e p 286-290, Ghai 8e p 150-161Although antibodies lysozyme, both are important for protective effects of breast milk, antibodies IgA play a major role. 