单项选择题

在窗体上画一个命令按钮,其名称为Command1,然后编写如下程序:Function Func(ByVal x As Integer, y As Integer) y=x*y If y >0 Then Func = x Else Func = y End IfEnd FunctionPrivate Sub Command1_ Click( ) Dim a As Integer, b As Integer a=3 b=4 c = Func(a, B ) Print "a="; a Print "b="; b Print "c="; cEnd Sub程序运行后,单击命令按钮,其输出结果为______。

A.a=3 b=12 c=3
B.a=3 b=4 c=3
C.a=3 b=4 c=12
D.a=13 b=12 c=12