This refusal by the Senate to approve the treaty is an example of... international relations

rule of law

executive veto

checks and balances

D) Checks and balances.

Explanation:

Checks and balances are instated by a government to limit the amount of power a branch has on another by giving the other branches the ability to "check" and act on the other for a fair government. International relations would deal with standings with other countries, nations, or kingdoms, while executive veto is the power of the President to deny any bill that has been passed. But since this example doesn't describe Wilson vetoing anything, it can't be C. Rule of law is saying that anyone, no matter how much power, wealth, title or status you have, everyone is bound to the law. The option left is D, because the Senate is "limiting" the authority of the executive branch (a president and his cabinet) by refusing to approve the Versailles Treaty. And that's why Wilson and America didn't join the League of Nations.

a and c?

i think it is a and c

early greek culture has had an important impact on government and education. first of all, they established the democratic political systems and procedures we have today. consequently, we inherited trial by jury for example. considering education, greek philosphers, mathematicians set he intellectual basis of different areas of studies. in addition, the alphabet originated from the phoenician alphabet into the one we have today and the first library was built in egypt. moreover, greek culture has an impact in current art, architecture and sports disciplines.