运行下列程序,单击窗体后输出的结果是( )。Private Sub Form_Click()Dim aDim s As Intege

运行下列程序，单击窗体后输出的结果是( )。

Private Sub Form_Click()

Dim a

Dim s As Integer, i As Integer

a = Array(1, 2, 3, 4, 5, 6)

s = 1

For i = 5 To 1 Step -2

s = s * a(i)

Next i

Print s

End Sub

A、 15

B、 48

C、 120

D、 720