When the antigen-presenting cells binds to the T-cell, it will cause the T-cell to increase the amount of a protein called perforin, which is secreted to kill nearby cells. Which of these could INCREASE the amount of a functional perforin proteins produced?       a.   Increased methylation of DNA near the site of the gene       b.   Increased binding of a repressor, that decreases the binding affinity between TFIID and DNA       c.   Increased production of a small RNA that is complementary to perforin mRNA       d.   Increased O-linked glycoslyation of perforin proteins in the Golgi

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