I believe it's 1. Formal language
A. This intro sentence isn’t contributing to the body of the paragraph and doesn’t introduce the topic in a constructive manner, as should be done with all editorials. You must assume that the audience of your editorial doesn’t know anything about the topic you are going to convey.
I’d say D because it explains what it is and that’s basically the whole paragraph.
After winning the Battle of Brandywine, the British captured Philadelphia on September 26, 1777. The British army finally left the Continental capital almost nine months later on June 18, 1778, following France's entry into the war.
