Question

why did most revolutions end by 1850?
people stopped supporting war and conflict.
monarchs killed all of the revolutionaries.
revolutionaries succeeded in enacting change.
countries decided to return land to original owners.

Explanation:

By 1850, many revolutionary movements (e.g., in Europe) had achieved key goals like constitutional reforms, expanded rights, or overthrown oppressive regimes, reducing the impetus for continued revolution. Other options are less accurate: people did not universally stop supporting conflict; monarchs did not eliminate all revolutionaries; and land return was not a widespread, revolution-ending action.

Answer:

C. Revolutionaries succeeded in enacting change.