有如下程序段: i = 1Do While i <= 5 If i = 0 or a(i - 1) <= a(i) Then i = i + 1 Else t = a(i): a(i) = a(i - 1): a(i - 1) = t i = i - 1 End IfLoopFor i = 1 To 5 List2.AddItem a(i)Next i数组元素a(0)到a(5)的值依次为“0,71,22,48,79,27”,经过该程序段“加工”后,数组元素a(4)的值为( )
A . 0
B . 71
C . 48
D . 27
答案:B