Lauren feels a cold coming on, and her friend recommends taking a high dose vitamin C supplement. But Lauren isn't just taking her friend's word for it. Before she takes a supplement, she wants to at least be sure it's safe. Which of the following DRI values would assist Lauren in determining the highest amount of the supplement that would be safe for her to consume? Estimated Average Requirement (EAR) Acceptable Macronutrient Distribution Range (AMDR) Recommended Dietary Allowance (RDA) Tolerable Upper Intake Level (UL)