What effect is created by the author's decision to describe the narrator falling asleep while reading a book about history?

a)   it explains that many people died because medicines and medical practices were not effective.

it is very normal for dogs to do such things as ripping stuffing out of their beds, toys, pillows, couches. really anything. i had three dogs who thought they would love to chew up their bed, after a few days or so it came out in their waste. the coloration is differnt of their waste, but they are fine, still eat, play, drink, normal. its nothing to worry about.

- hope this !