A 0.200 M S solution is produced by __________. a. dilution of 250.0 mL of 1.00 M K2SO4 to 1.00 L b. dissolving 43.6 g of K2SO4 in water and diluting to a total volume of 250.0 mL c. diluting 20.0 mL of 5.00 M K2SO4 solution to 500.0 mL d. dissolving 20.2 g of K2SO4 in water and diluting to 250.0 mL, then diluting 25.0 mL of this solution to a total volume of 500.0 mL e. dilution of 1.00 mL of 250 M K2SO4 to 1.00 L