执行下列程序语句后tuple(t)和list(t)的结果为？（ ）
>>>t=(i*i for i in range(4)) >>>tuple(t) >>>list(t)
(0,1,4,9)
[0,1,4,9]
[]
()
(0,1,4,9,16)
[0,1,4,9,16]