Which Roman engineering achievements had the MOST DIRECT influence on the spread of the Roman Empire? A
baths and amphitheaters
B
walls and fortresses
С
roads and bridges
D
dams and aqueducts

C

Explanation:

Roman engineers improved upon older ideas and inventions to introduce a great number of innovations. They developed materials and techniques that revolutionized bridge and aqueducts' construction, perfected ancient weapons and developed new ones, while inventing machines that harnessed the power of water.

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.