Your goal is to purify protein B. Based on information glven in the table, whieh strategies would work best for the elimination of correct contaminants and purification of your target protein. Gel filtration at pH of 6.0 to eliminate protein A Cation exchange pH6.0 to eliminate protein A Gel filtration at H of 6.0 to eliminate protein C Anion exchange pH 6.0 to climinate protein A Cation exchange pH6.0 to eliminate protein C