How did justinian's code have an impact beyond the byzantine empire?

a. it provided models for strong alliances between monarchs
b. it organized ancient roman laws for use within the empire
c. it promoted trade among europe, the middle east, and asia
d. it later guided the development of present-day international law

ummm? is that supposed to be a question or a but this is a reason he won re-election

explanation:

"despite progress in the war, lincoln and most political pundits were convinced that he would lose his bid for reelection in 1864. the country was war weary and the democratic party's nominee, george mcclellan, was likely to negotiate a peace treaty with the confederacy if elected." - loc.gov

its c