在使用query_builder时，如何使用Symfony formbuilder选择默认选项？

use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\FormBuilderInterface;

// ...

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        // ...
        ->add('your_field_name', ChoiceType::class, [
            'choices' => $your_choices_array,
            'query_builder' => function (YourEntityRepository $er) {
                return $er->createQueryBuilder('e')
                    ->orderBy('e.name', 'ASC');
            },
            'choice_label' => 'name',
            'data' => $your_default_value,
        ])
        // ...
    ;
}