Which of the following accurately describes the outcome of the revolutions of 1848?
a. while the revolutions brought down napoleon's empire, they were unable to create a balance of power between european countries
b. while the revolutions were relatively non-violent, they were still able to free most colonies from european domination
c. though the revolutions were short-lived, they established most of the current borders for european countries.
d. though the revolutions failed to establish new governments, they spread ideas that inspired later revolutions.