What was on important effect of Charlemagne's as holy roman emperor a the feudal system was brought to an end
b the Catholic Church lost most of its power
c education became more important
d small kingdoms became more independentent

I think it is d or c

Congress could only request money and had no power to tax; each state made its own money; there was no national court system. which one of these weaknesses do you believe was the most important to correct?

Which statement describes an important outcome of the congress of vienna? a. napoleon launched his final european military campaigns. b. european states had their borders clearly defined. c. jewish people were given equal right in germanic states d. the slave trade became increasingly important to european economies.

Which statement best explains how the invention of corporations contributed to the economy in the 1800's