1) Although he and Alexander Hamilton worked together on the Federalists Papers is the dependent clause
<span>For over two hundred years, the reason for New England's Dark Day was unknown.
This represents the main idea because it lets the reader know that the passage is talking about a "Dark Day", where it happened (New England), and the fact that for over two hundred years it was a mystery. It also gives an indication that the mystery will have been solved by the end of the passage. </span>
Yes I also believe the answer is C because the drama must be memorized to be able to be preformed by the actors