How did the movement of wealth to Constantinople improve transportation in the Eastern Roman Empire? More roads and aqueducts were built.
Better shipping technology was developed.
A harbor was constructed for the new capital.
Travel time to grain-producing areas decreased.

More roads and aqueducts were built.

Explanation:

Took the test and this was the correct answer.

c) troops march forward in close formation against newer, more accurate weapons

when a country suffers, for example, a drought period, the market product is affected for a low offer, in this case, potatoes; the government has to tax to the households, which have to give more money for the potatoes which they consume, that situation make them consume substitute goods even through loans, it could increase the financial market movement and the inflationary phenomena, the business has to increase salaries in order to the employees could buy a more expensive food (potatoes) and in order to inflation tha business had to buy expensive supplies in the factor market, while the rest of the world have to gain more money to consume the same amount of potatoes.