I'm very confused about this question. Please help me! Thanks!

D Question 9 5 pts Grady, Renate, and Blake must divide a green shirt, a red shirt, and a blue shirt. They assign points to each item as follows: Gary: green shirt 60, red shirt 20, blue shirt 20. Renate: green shirt 30, red shirt 60, blue shirt 10. Blake: green shirt 10, red shirt 20, blue shirt 70. Which of the following splits is envy-free? O None of these spilts are envy-free. Renate gets the red and blue shirts; Blake gets the green shirt. Renate gets all three shirts. O Gary gets the red shirt; Renate gets the blue shirt; Blake gets the green shirt. O Gary gets the green shirt; Renate gets the red shirt; Blake gets the blue shirt