VB一些的小问题

以下有关数组定义的语句序列中，错误的是

A） Static arr1(3)                B）Dim arr2() As Integer

arr1(1) = 100                         Dim size As Integer

arr1(2) = "Hello"                     Private Sub Command2_Click()

arr1(3) = 123.45                          size = InputBox("输入：")

ReDim arr2(size)

．．．．．．

End Sub

C）Option Base 1                  D）Dim n As Integer

Private Sub Command3_Click()      Private Sub Command4_Click()

Dim arr3(3) As Integer              Dim arr4(n) As Integer

．．．．．．                             ．．．．．．

End Sub                           End Sub

麻烦简单解释一下

A定义静态数组是要类型的。B貌似正确，但是输入不能控制类型一定是INTEGER很可能出现类型不匹配。D。n应该是常量