Which is not something the aristocracy did during the Heian period

During the Heian period, the aristocracy did not produce pottery and jewelry, which is a trademark of japanese ancient times. But during that period, those beautiful articles were not under production of the aristocracy. In that period, the main task of the aristocracy was the administration of the land.

Heian period, in Japanese history, the period between 794 and 1185, ... The period was characterized by the flourishing culture of the court aristocracy