Answer:
narrows connotative meaning is enclosed and dreams wasn't in the poem
The author used verbal irony as a literary device.
The fragment that is made up of a complete predicate is option A. "could not be heard above the voices in the hallway"
In grammar, the predicate is defined as the part of the sentence that contains the verb and gives information about the subject.
Option A is the only option that contains a verb, in this case "could" and it is providing information about a subject we don´t know. The only options lack verbs,
Well if it was me i would bring up points about telephones being used in these places for many reasons such as communicating with others such as if you were in a store and you wanted to see if someone liked something and for other things such as emergencies such as if you were being followed or were in any life threatening situation. sorry if this doesn’t help