In an experiment, sugar cookies are ground up into small particles. one gram of the sugar cookie powder is added to each of 4 test tubes. 5 ml of distilled water are placed into each test tube, and each tube is shaken gently until a solution is created. a different indicator is used on each test tube to detect the presence of a particular nutrient. the test tubes are then heated gently. which indicator would most likely yield a positive test, by way of a color change, in the water-cookie solution? of a color change, in the water-cookie solution? a) biuret solution b) sudan red test c) phenol red test d) benedicts solution