The Tet offensive altered public opinion of the war because the "<span>(B) U.S. suffered heavy losses". Although it ended with a US and South Vietnamese victory, many Americans grew wary of the costs. </span>
An oligarchy- by definition- means, “A small group of people having control of a country, group, or organization.” (Source for definition: “Google”)
The answers not supported by this definition are: B, C, and D, as B and C are citizen-contributed systems, and D is a monarchy/dictatorship.
This leaves us with answer “A” being the only plausible answer to fit our description.
I hope this helps!
<h2>HMM means Hi Marry Me(◕ᴗ◕✿)</h2>
-After promising Ionia, Persians supported construction of Spara military-->attacked Athenian coast
-430 BC- 1/3 Athens population & leader died of plague-->numbers=weakened, disorganized
-Serval Athenian allies joined Sparta-->lost power
