Answer:
B. An empire made up of Germany, parts of Italy, and much of central and Eastern Europe was created.
D. A line of Ottonian kings ruled after Otto's death.
E. The empire came to be known as the Holy Roman Empire.
Step-by-step explanation:
Otto the Great ruled Germany and the Holy Roman Empire until his death in 973. Under his reign, he unified all German tribes into one single kingdom, which later expanded to the kingdom of Italy and other regions in Eastern Europe.