Yes that is true they are
Bradbury describes Mildred’s earbuds as seashells. He uses this metaphor in a reference as people hold a seashell up to one’s ear to hear the sound of the ocean.
This should alarm the reader because the <em>seashells are used by Montag’s society to control information and control potential rebellions</em>. This is a way to control individuals and paint a different reality. Also with the seashells always plugged in <em>people don’t have the time or a silence to listen to their own thoughts.</em>
B. feels, an action verb has to be an action that is happening, and is the subject of the sentence, so here it would be feels.
If the passage is about the human errors that contributed to the spread of the fire, only details that prevented the firemen from being able to contain the fire should be used. The sentence "Even after the fire, Brown was confident..." shows that Brown was confident in his decision. This sentence does not however directly contribute to the firefighters inability to effectively contain the fire at the time of the fire. This takes place after the fire has done the damage.