Zosia is drawing kangaroos. The first one is blue, the next one green, the one after it red, the fourth one yellow, and then again blue, green, red, yellow, and so on, in the same order. What color will the seventeenth kangaroo be? (2003 Math Kangaroo Problem, Level 3-4, Question \#4) 
选项为:A:$$$$Blue  B:$$$$Green  C:$$$$Red  D:$$$$Black  E:$$$$Yellow  请回答其中一个选项.