A.Static arrl(3) arr1(1)=100 arrl(2)="Hello" arrl(3)=123.45 B.Dim arr2()As Integer Dim size As Integer Private Sub Command2_Click() size=InputBOX(“输入:”) ReDim arr2(size) ┄ End Sub C.Option Base 1 Private Sub Command3_Click() Dim arr3(3)As Integer ┄ End Sub D.Dim n As Integer Private Sub Command4_Click() Dim arr4(n)As Integer ┄ End Sub