A researcher wants a 68 ounce saline solution with a concentration of 6%. She has concentrations of 3% and 15%. How much of each solution must she use to get the desired concentration? Select the correct answer below: 51 ounces of 3% solution and 17 ounces of 15% solution 49 ounces of 3% solution and 19 ounces of 15% solution 16 ounces of 3% solution and 52 ounces of 15% solution 52 ounces of 3% solution and 16 ounces of 15% solution 19 ounces of 3% solution and 49 ounces of 15% solution 17 ounces of 3% solution and 51 ounces of 15% solution