在窗体中添加一个命令按钮，编写如下程序： Private Sub Sub1(p，m，n)p=p+1：m=m+1：n=n+1Print "sub1："；p；m；n End Sub Private Sub Command1_Click()a1=1：b=2：c1=3Call Sub1(a，b1+3，c1)Print"Main："；a1；b1；c1 End Sub 程序运行后，输出结果为

A．Sub： 2 6 4 Main： 2 6 4

B．Sub： 2 6 4 Main： 2 6 4

C．Sub： 2 6 4 Main： 1 2 3

D．Sub： 2 6 4 Main： 2 2 3

Which of the following statements regarding index funds is least accurate（）

A. One disadvantage of index funds is that they do not provide access to international securities. 

B. One advantage of index funds is that they allow for diversification that is typically not available to the average individual investor due to a lack of resources. 

C. One might conclude from the efficient market literature that an investor should mimic the market’s performance and minimize costs by buying index funds.