Not able to read data from access database

I have a vb form in visual studio 2010 and I want to put data from it by importing the data from an access database. What I'm trying to create is a multiple answer quiz for my students. In my database I have 30 questions but I only want to randomly select 10. This is what my database look like.

This the the code that I have for this part.

Dim provider As String
Dim dataFile As String
Dim connString As String
Public myConnection As OleDbConnection = New OleDbConnection
Public dr As OleDbDataReader


Private Sub Form1_Load(sender As Object, e As System.EventArgs) Handles Me.Load
    provider = "Provider=Microsoft.Jet.OLEDB.4.0;"
    dataFile = "Data Source =F:\Quiz\Programs\UNZipped\questions.accdb; User Id =admin; Password=password;"
    connString = provider & dataFile
    myConnection.ConnectionString = connString

    myConnection.Open()

    Dim str As String
    str = "SELECT Top 10 ID_Question From Questions ORDER BY RND(ID_Question)"
    Dim cmd As OleDbCommand = New OleDbCommand(str, myConnection)
    dr = cmd.ExecuteReader


    While dr.Read()

        Label3.Text = dr("ID_Question").ToString
        MsgBox("test")
    End While
    myConnection.Close()
    MsgBox("fsafa")
 End Sub

The code run with no errors but it seems like the connection does not work. I tried changing Microsoft.Jet.OLEDB.4.0 by Microsoft.Ace.OLEDB.12.0 like someone suggested on another similar question. I'm quite new at this kind of stuff so I'd like to get some help.

Thank you