A place that would sometimes be warm and
sometimes be cold

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.

answer; i had to look this up and the only one i found was(last only 15 minutes) plz check first and good luck;

i would say b. research typically uses a variety of sources

answer; conflict perspective;