下列程序运行后,信息框显示的内容是()。Private Sub Command1_Click()Dim s1 As StringDim s2

下列程序运行后，信息框显示的内容是()。

Private Sub Command1_Click()

Dim s1 As String

Dim s2 As Integer

s1 = "Hello-World,2004"

s2 = Len(s1) + InStr(1, s1, "2")

MsgBox s2

End Sub

A.Hello-World

B.2003

C.16

D.29