Which of the following is a characteristic of a highly-developed education system?

(i) Low graduation rates
(ii) Compulsory primary and secondary education
(iii) High literacy rates
A.
ii only
B.
iii only
C.
i and iii only
D.
ii and iii only

ii and iii only

Explanation:

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.

is this even a question? ? : /