窗体上有Commond1、Commond2两个命令按钮,现编写以下程序:Option Base 0Dim a() as Integer, m as IntegerPrivate Sub Commond1_Click()M = InputBox("请输入一个正整数")Redim a(m)End SubPrivate Sub Commond2_Click()M = InputBox("请输入一个正整数")Redim a(m)End Sub运行程序时,单击Commond1后输入整数10,再单击Commond2后输入整数5,则数组a中元素的个数是
A. 5
B. 6
C. 10
D. 11