how make vba code work over range of cells

hi

i have some vba code that works perfectly but only on cell c2 but would like it to work on every cell in column c

thanks in advance here my code

Private Sub Worksheet_Change(ByVal Target As Range)
    If (Target.Address = "$C$2") Then
        If (Target.Value = "133") Then
        
          Dim varAnswer As String
     
    varAnswer = MsgBox("test")
     
     
     
        If varAnswer = vbNo Then
        Exit Sub
        End If
    If varAnswer = vbYes Then
         
    
    End If
        End If
    End If
End Sub