I believe the answer is D. <span>It united many different European kingdoms under a shared religious culture.
When roman empire falls, the fragments of what used to be territories formed their own kingdom/Governance.
and even though the kingdoms/governance are now separated, they still held into their religious Christian traditions as some sort of guidance in their life</span>
Two things societies with iron technology developed socially are "divisions of labor" and "<span>hierarchical social classes," since these societies were generally more advanced than their counterparts. </span>
From what l can tell it looks good
Voting rights, I would say.
Impending war between Mexico and the US.
The American settlers in California resented the Mexican government and were fearful of oppressive reforms with rumors of a war between Mexico and the US. To secure their place, troops incited a rebellion and California declared their independence.
