Drupal render arrays allowing html markup -- allowed tags

    $html = ' ';
    $html2 = '';
    $html3 = 'English';
    $html4 = 'Spanish';
    $html5 = 'Chinese';
    $html6 = 'YY';
    $html7 = '';
    return array(
      '#markup' => $html . $html2 . $html3 . $html4 . $html5 . $html6 . $html7,
      '#allowed_tags' => ['img', 'select', 'option'],
    );