I am new to .net and have to create a project for school. I am using an MVC 5 template and it has a standard login but now I need 2 roles: student and teacher. How and where do I create those roles? And then how do I make it so that only logged in people can the last item from this nav

```
<div class="navbar-collapse collapse">
            <ul class="nav navbar-nav">
                <li>@Html.ActionLink("Home", "Index", "Home")</li>
                <li>@Html.ActionLink("Roles", "Index", "Roles")</li>
                <li>@Html.ActionLink("Evaluaties", "About", "Home")</li>
            </ul>
            @Html.Partial("_LoginPartial")
        </div>

```

Plus I want one role to see a different view from the other how do I do that?