Which of the following best defines the concept of a revolution?
a. a period of rapid economic and military growth that allows a
country to form an empire
b. a feeling of pride and loyalty a person has toward his or her
country
c. an attempt to end the rule of a government and replace it with a
new one
d. a policy in which one country extends power and authority over
other countries

C. An attempt to end the rule of a government and replace it with a

new one

Explanation:

It was an important factor in the development of Europe. In the 19th century, a wave of romantic nationalism swept the European continent, transforming its countries. Some newly formed countries, such as Germany and Italy were formed by uniting various regional states with a common "national identity".

i think the answer is a and i hope this ; ))

sonar maybe? ? i dont know the choices