Which statement best explains how the reader can determine that the narrator of this passage is unreliable?

the narrator is very calm as he begins to relate all of the events of the story.

the narrator worries that his dreadful nervousness has caused him to go mad.

the narrator says he is not mad, but he claims he can hear all the sounds on heaven and earth.

the narrator has sharpened senses that allow him to hear sounds that others cannot.

In the poem, collins suggests that memories do what as people age

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were wealthy people. they needed some way to keep track of what they owned. they began drawing pictures. they used a reed as a pen. they drew on soft pieces of clay. the soft clay was then dried in the sun. the tablet became a permanent record. later, the sumerian drawings changed into wedge-shaped symbols. this kind of writing is called cuneiform. by putting symbols together, the sumerians could write entire sentences.

What questions should readers ask about the exposition of a story?