Passing a variable from userform to module code - value being dropped or not seen

I am trying to print word documents from an excel userform which lists documents as radio buttons captions. When radio button selected I can see the document name as "SelectedOption" in a message box. When I then start a module code "automateword" the value of "SelectedOption" is dropped. How can I pass it on??

Private Sub CommandButton1_Click()
    Dim i As Integer

    For i = 0 To UserForm1.Controls.Count - 1
        If UserForm1.Controls(i) = True Then
            SelectedOption = UserForm1.Controls(i).Caption
            
            MsgBox SelectedOption
        End If
    Next
Call automateword

End Sub

Sub automateword()
    Set wordapp = CreateObject("word.Application")
   MsgBox "2" & SelectedOption
    wordapp.documents.Open "P:\CONTROLLED DOCUMENTS\" & SelectedOption
    'wordapp.documents.Open "P:\CONTROLLED DOCUMENTS\test.docx"
    wordapp.Visible = True
End Sub