Dissertation Options

It's considerably early in my phd career (especially considering I'm on the "one course a semester, this'll take me 100 years to graduate" plan).  But after not having a thesis topic until 1.5 years into my masters degree, I keep wanting to get my dissertation topic decided. Maybe not details or exactly what I'll cover, but the general scope, era, subject matter. So right now, I have three viable options. I don't want to say too much- I'm still trying to see what materials are available. But below, I post 3 artifacts to highlight the three topics. A sort of teaser trailer. [these are in no particular order]

 (source)

 (source, pg 96)