The correct option is D Both sacked Constantinople
The Vikings and the Ottoman Turks were different in almost every way imaginable except they did share one thing in common.: they were both able to overtake the city of Constantinople( the Vikings three times as raids, the Ottomans as a full invasion resulting in dominance of the region to become the Ottoman Empire), making E the best choice. Only the Vikings were known as masterful sailors of long-oared boats (A), and only they eventually converted to Christianity out of the two groups. (B). The Ottoman Turks, on the other hand, did greatly expand the reach of Islam through the establishment of the Otooman empire (C), which lasted until 1922 (D)