Translate a Drupal node's author and created date.

Question

Which of the following forms allows me to make a string with multiple variables translatable?

Accepted Answer

{% trans %}
      Submitted by {{ author.username }} on {{ node.created }}
    {% endtrans %}

Answer

{% translate %}
      Submitted by {{ author.username }} on {{ node.created }}
    {% endtranslate %}

Answer

{% translation %}
      Submitted by {{ author.username }} on {{ node.created }}
    {% endtranslation %}

Answer

{% translatable %}
      Submitted by {{ author.username }} on {{ node.created }}
    {% endtranslatable %}

Question from the Drupal 8 test