As a writer _____ the new century, he is popular among the teenagers.

A．belongs

B．belongs to

C．belonging

D．belonging to

窗体上有名称为Command1的命令按钮事件过程及2个函数过程如下：
Private Sub Command1_Click()
Dim x As Integer，y As Integer，z
x=3
y=5
z=fy(y)
Print fx(fx(x)),y
End Sub
Function fx(ByVal a As Integer)
a=a+a
fx=a
End Function
fy=a
Function fy(ByRef a As Integer)
a=a+a
fy=a
End Function
运行程序，并单击命令按钮，则窗体上显示的2个值依次是______和______。