When exercising for 45 minutes, it is actually most important to rehydrate with: Select one: a. at least 30 ounces of something acidic like lemon juice or coffee, because physical exertion will deplete the stomach of its natural acids. b. at least 30 ounces of water, because even a loss of 10% of body water can have a major impact on body function. c. at least 30 ounces of sports drink, because the body is not able to hold on to electrolytes over this time period. d. something basic like an antacid, because physical exertion will cause a pH shift of the body towards a more acidic pH. e. something with lots of calories, because the body has no stockpile of energy past 30 minutes of exercise