For L, make sure you mark up where you see pros (+)/cons (-) and explain why it could be seen as either a good or bad thing for the Mill Girls.
If you are considering Options 2,3, or 4 for your essay, you can start doing some background reading/exploring of resources, There are many more sources than what you are expected to actually read, but I wanted to give you options. So, for now, just browse and take a look and read over what's out there. I also have hard copies of some of these sources in the class.