8. Justinian strengthened the Byzantine Empire by:
A Controlling the election of the Pope in Rome.
B Expanding trade and reconquering parts of the Roman Empire.
C Moving the capital of the empire to Jerusalem.
D Defeating the armies of the First Caliphate at Damascus.

I really need some help does anyone know the answer

Which of the following groups of sentences most accurately describes the cuban missile crisis?

How did the completion of the transcontinental railroad change the lives of american citizens? a-it increased the wealth of all americans and enabled them to travel more.b-it made cross-country travel too expensive for ordinary americans.c-it decreased the safety of americans who moved to settle the plains.d-it shortened travel time between the east and west for all americans.

Which statement best explains how the invention of corporations contributed to the economy in the 1800's