Julio son is graduating. He sent his son three packages of 8 1⁄2 kg, 10 1⁄4 and 2 1⁄2 kg. What is the total of the packages sent? A. 20 1⁄4 kg B. 21 1⁄4 kg C. 18 1⁄2 kg D. 23 2/2 kg