The main forum of government was the Senate of Constantinople, which was made up of aristocratic males who were given their position by the emperor. Created by Constantine I (r. 306-337 CE), it was modelled on the Roman Senate
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The answer is either a or b. by dissolving the monarchy they would get a new type of ruling
<span>They followed strict caste rules while interacting with people of other castes.
They believed that their present life was the result of their past karma.
They could choose any occupation, regardless of their caste. </span>
There are many reasons but here's two
1. The 'war' and invasion etc was fought in the West so the province that you are going to have to raise troops and revenue from to fight the war is the same one where all the fighting takes place.
Meanwhile the 'East' had Anatolia as a heartland for revenue and recruits that was untouched .
<span>2. There is a lot of evidence that it wasn't simply 'barbarian' invasion but also a large element of rebellion against central authority by local forces. These are the people who are supposed to supply your troops and revenue.</span>