How to get dropdown based on another dropdown MVC(VB.Net)

I went through this tutorial and converted it for my VB.Net use,

https://www.c-sharpcorner.com/UploadFile/4d9083/creating-simple-cascading-dropdownlist-in-mvc-4-using-razor/

However, I get an error [object Object], I have tried all i could to debug but no headway, am not a javascript fan, i came from webform and never had to write any scripts, Please can anyone help as i am already stock on the project and am over 93% completion! just this dropdown stuff, are there any other alternatives too? Thanks in advance. Here is my code

Controller

Public Function PullStates(ByVal id As Integer) As JsonResult
Dim states = db.States.Where(Function(s) s.CountryCode = id).[Select](Function(s) New With
{
Key .Text = s.Descrip,
Key .Value = s.Code
})
Return Json(New SelectList(states, "Value", "Text"))
End Function

'GET: Region/Create
Function Create() As ActionResult
ViewBag.Code = "AUTO"
ViewBag.Country = db.Countries.[Select](Function(c) New SelectListItem With
{
.Text = c.Descrip,
.Value = c.CountryCode
})
Return View()
End Function

View

@Html.DropDownList("Country", CType(ViewBag.Country, IEnumerable(Of SelectListItem)), "--Select Country--", htmlAttributes:=New With {.class = "tb8"})

@Html.DropDownList("State", New SelectList(String.Empty, "Value", "Text"), "--Please Select State--", htmlAttributes:=New With {.class = "tb8"})

Script

"~/Scripts/ddl/jquery-1.7.1.js" type="text/javascript">
"~/Scripts/ddl/jquery-1.7.1.min.js" type="text/javascript">
"text/javascript">
$(document).ready(function () {
//Dropdownlist Selectedchange event
$("#Country").change(function () {
$("#State").empty();
$.ajax({
type: 'POST',
url: '@Url.Action("PullStates")', // we are calling json method
dataType: 'json',
data: { id: $("#Country").val() },
success: function (states) {
// states contains the JSON formatted list
// of states passed from the controller
$.each(states, function (i, state) {
$("#State").append(' + state.Value + '">' + state.Text + '');
}); // here we are adding option for States
},
error: function (ex) {
alert('Failed to retrieve states.' + ex);
}
});
return false;
})
});