Get Choice Field values using Client Side Object Model in SharePoint 2013

ClientContext context = new ClientContext(source_site_url);

           List list = context.Web.Lists.GetByTitle(list_name);

           Field choice = list.Fields.GetByInternalNameOrTitle("jobtitle");

           FieldChoice fldChoice = context.CastTo<FieldChoice>(choice);

           context.Load(fldChoice, f => f.Choices);

           context.ExecuteQuery();

           Foreach (string item in fldChoice.Choices)

           {

               control_name.Items.Add(item.ToString());

               //add choices to dropdown list

           }