Factors such as literacy rate, average family income, infant mortality rate, and life expectancy are used most often to measure
a.
development
b.
happiness
c.
quality of life
d.
gross domestic product

it a Development

The correct answer is A. development

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.

i dont know but thats a great qusestion