Kidney would be the correct answer
Yes you are supposed to take a slight pause after saying the phrase "As Previously mentioned"
Answer:
In its stable molecular form, oxygen exists as two atoms and is written O2. to distinguish it from an atom of oxygen O, or ozone, a molecule of three oxygen atoms, O3. Even though each of these is all oxygen, combining atoms of the same element may give very different properties to the molecule.
Explanation:
My personal opinion to what the answers are:
Readers are uneasy with the narrator's growing instability,
Readers question the narrator's ability to act rationally,
Readers understand that the account given by the narrator is true.
I hope this helped, again, this is only my opinion to what I believe the answers are.