Which of these not pictured in source 2 addresses a common imperial technique implemented by the chinese comparable to the techniques displayed in source 1? a)the chinese constructed vast networks of concrete roads b)the chinese constructed elaborate canals throughout their empire c)the chinese constructed frontier forts garrisoned by multi-ethnic forces d)the chinese constructed fortified cities connected to the defensive wall networks

C)the Chinese constructed frontier forts garrisoned by multi-ethnic forces

Explanation:

As you can see in both maps, the ones that built roads and connected the whole empire were the Romans, in the Chinese map you can observe how they actually put their efforts in a different place cause they needed to defend themselves from foreign attacks and invasions, their priority was to protect the center of the empire so they built the great wall, so the answer would be C)the Chinese constructed frontier forts garrisoned by multi-ethnic forces

presidency should be the title

c, they united with once