How do governments get the money for the goods and services that they provide?
a. they print money as they need it.
b. all government spending comes directly from taxes.
c. government spending is paid from either taxes or borrowed money.
d. none of the above

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place