What is one of the author's purposes, according to the lesson emphasis?

a) to describe where things are in the dining room
b) to introduce aunt susan
c) to make the reader hungry for dinner
d) to create a foreboding atmosphere

onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.