DataClassInfo info = DataClassInfoProvider.GetDataClass("<class name>");
if (info != null)
{
      CMS.FormEngine.FormInfo fi = new CMS.FormEngine.FormInfo(info.ClassFormDefinition);
      CMS.FormEngine.FormFieldInfo ffi = fi.GetFormField("<field name>");

       string options = ValidationHelper.GetString((ffi.Settings["options"]), String.Empty);

       options = options.Replace(FormHelper.SEMICOLON_TO_REPLACE, FormHelper.REPLACED_SEMICOLON);

       string[] lines = options.Split(new string[] { Environment.NewLine, "\n" }, StringSplitOptions.RemoveEmptyEntries);
       if (lines.Length > 0)
       {
            string text;
            string value;

            foreach (string line in lines)
            {
                // Insert hidden semicolons
                value = line.Substring(0, line.IndexOf(";"));
                value = value.Replace(FormHelper.REPLACED_SEMICOLON, ";");
                text = line.Substring(line.IndexOf(";") + 1);
                text = text.Replace(FormHelper.REPLACED_SEMICOLON, ";");
            }
     }
}