adding a direct quote makes you sound as though you paid attention, and you know what you're talking about, making you seem more reliable
Answer:
this...
is the vague pronoun in the sentence...
ANSWER:
D. Using historical research ensures that you create original work and use appropriate details.
This will ensure that you are aware of historical facts and so don't produce work which is similar or the same as what is written in the past. As well as this, it will ensure that you are respecting the details and facts of historical events and that your work makes sense.
that between Fortunato and his arch-nemesis Montresor.
