Which sentence is correctly capitalized? In the decades before the war, labor was provided by immigrants in the north and slaves in the south.
In the decades before the war, labor was provided by immigrants in the North and slaves in the south.
In the decades before the war, labor was provided by immigrants in the north and slaves in the South
In the decades before the war, labor was provided by immigrants in the North and slaves in the South

A strong thesis statement is key to writing a persuasive essay. The thesis statement presents your topic to the reader, provides your opinion on that topic and summarizes the argument you’ll make in the paper by offering evidence for your opinion. A good thesis statement should capture all of these essential details in just one or two sentences. The thesis statement generally appears after a brief introduction of your topic, often as the last sentence of your first paragraph.