What caused the time period between the Zhou and Qin Dynasty? (A) Economic prosperity from the Silk Road trade
(B) State imposed isolationism from nomadic invaders
(C) Power struggle between rival clans from feudalism
(D) Peasant revolt from frequent floods and famines

Will give brainliest, plus 100 points, plz need the esay asap aka today by 2: 30! write a well-developed essay identifying an american who contributed significantly to united states history from the period 1900 to 1940 and provide support to this claim. • the essay will include 5-paragraphs. • the first paragraph is the introduction paragraph. • the introduction paragraph will include the thesis sentence placed as the last sentence of the introductory paragraph. • a well written thesis sentence states the topic, the claim and the three reasons you chose your topic. • the three body paragraphs will include details for each reason chosen in your thesis. • each of the body paragraphs focuses on one reason per paragraph. • the conclusion will restate the thesis, have stated an important point from each body paragraph and wrap up the essay nicely. • cite your sources and write in your own words.