Dynamic DropdownList Passing Parameters

I have a dynamic created drop down list - and I set the event of it to be like this:

ddlAnswer.ID = "ddlistAnswer" + QuestionID;
ddlAnswer.SelectedIndexChanged += new EventHandler(ddlAnswer_SelectedIndexChanged);

Please note that drop down list is dynamic, and in selectedIndexChanged, I would like to pass the "QuestionID" to that selectedindexchanged to work on my logic. Is there a way to pass it to that method as command argument or something?

Code:
protected void ddlAnswer_SelectedIndexChanged(object sender, EventArgs e)
{
//wanting that question id here
}