If you assume something about someone, you could be acting on false information and that can lead to trouble.
Hi there! The answer would be A. This, because the word 'this' is a demonstrative pronoun.
A "Melee" is a synonym to pandemonium. It is something disorganized but the only difference here is that it mainly has to do with sports.
I believe this would be Publisher's name.
Harvard UP is the University's Press. We know for certain this is not the author, book title, nor medium of publisher (that is Print). The city of publication is likely Cambridge.