Look at the table of dynasties.
Dynasty: Achievement
Sasanian: Maintained Mesopotamian culture
Umayyad: ?
Abbasid: Made Baghdad a cultural capital
Safavid: Helped Persian culture thrive
Which description can replace the question mark?
Options/
Expanded the Muslim empire to its greater extent
Translated the Quran into the most foreign languages
Completed the conquest of the Byzantine empire
Introduced Islam into the Indian subcontinent