问题详情

运行下列程序：
Private Sub Form_Click()
Dim a As Integer
a = 1
For i = 1 To 5
Call fun1(a)
Next i
Print a
End Sub
Private Sub fun1(x)
y = 2
Do
x = x + y
Loop Until x > 10
End Sub
单击窗体后，则在窗体上显示的结果是()。
A.5
B.1 2 3 4 5
C.19
D.7