The correct word from the excerpt from Poe’s "The Fall of the House of Usher." that could be used to argue that the narrator is unreliable is the last option among the choices is: “Overpowered” suggests the narrator’s lack of control.
I have a strong feeling it is D. But I may be wrong.
The answers would be the following:
<span>Ringing and vibrating phones disrupt classroom instruction.
</span><span>Many applications and Internet sites display inappropriate material.</span>