Final answer:
The seventh grade boys were part of the devshirme system in the Ottoman Empire, which entertained Nurzhan. This system took Christian boys from European territories and trained them to become soldiers, palace administrators, or scribes.
Step-by-step explanation:
The seventh grade boys of the devshirme system in the Ottoman Empire seemed to entertain Nurzhan. The devshirme system was a method of recruiting Christian boys from European territories to serve the Ottoman state. The boys were converted to Islam, educated, and trained to become soldiers, palace administrators, or scribes. Some of them even rose to occupy important positions like Grand Vizier.