What concept is illustrated by the fact that congress has the power to introduce and pass laws, and the president has the responsibility to enforce all federal laws?

a. federalism
b. separation of powers
c. checks and balances
d. judicial review

answer

wages and job opportunities have grown slowly since the recovery began five years ago, while technology continues to change the nature of work. while many workers enjoy opportunities unimaginable a generation ago, many others feel the economy has left them b

explanation:

c. extended rights of citizenship to new groups

the legislative branch is formed by the house of representatives and the senate .