单选题
执行下列Python代码，输出结果是（ ）？
A
(1, 3, 3, 6, 8, 9)
B
(9, 8, 6, 3, 3, 1)
C
[9, 8, 6, 3, 3, 1]
D
[1, 3, 3, 6, 8, 9]