Web Forms :: Dynamically Add Controls Inside UserControl

Im trying to add a new "Question UserControl" dynamically to my page each time the user presses "Add question". This works fine and the last control gets deleted when the "Delete question" is pressed. My problem is that in each of the "Question UserControls" i have a placeholder where i would like to add a new Textbox when the user presses "Add answer" and then delete it once the "Delete answer is pressed". The way it works now when i press add answer, an Answer Textbox gets added to the placeholders in all the added Usercontrols. But i only want to add it to the one UserControl where the user pressed "Add answer".