People believe that conventions created specifically for the ratification of amendments form better representations of the people's will. State legislatures can oftentimes be biased for or against a certain amendment for their own wellbeing rather than that of the people they represent.
One major historical example of this can be seen in the use of ratification committees for the ratification of the American Constitution; the Founding Fathers believed that certain state legislatures would not ratify the Constitution even if the citizens of the states wanted to, so special conventions were created to more accurately portray the will of the people.
I believe it is A, constantine the great built the city etc.
After the conquest, Rome got access to and control of some very important trade routes. This brought in a lot of business and in turn wealth to the people of Rome . This was what caused a new class of wealthy Romans to emerge.
The best answer is:
"C" More troops.
They were better trained, more equipped, and definitely had a much larger quantity.
I hope this helps!
~kaikers