B
The governor determines the constitutionality of laws.
A. Emperor Alexander Severus, who was assassinated by his troops after a defeat.
B. Roman Senade, which accepted some army generals as legitimate emperors.
C. Security of the border, which they were supposed to keep. While the were fighting among themselves, they neglected the defenses of the Emprire, resulting in invasions.
D. Crisis, which ended with the Reforms made by Diocletian.
The Chinese kept silk production a secret because it was very important to their culture and economy for thousands of years.
Mars u can live in just like earth
I believe the answer is:
《Biblical allusions》
hope this help.
