Explanation:
Then they that feared the LORD spoke often one to another: and the LORD listened, and heard it, and a book of remembrance was written before him for them that feared the LORD, and that thought on his name.
Since she uses the derogatory word for the Union soldiers, it is the second option.
He wants her to know who he really is
An interrogative pronoun is a questioning pronoun, used when asking. For instance the five W's - who, what, where, when, why.
In this sentence - How could that be you moron? - the interrogative pronoun is 'How'.