Which statement best describes how the compare-and-contrast pattern of the text supports the author's purpose?

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.

explanation:

ward, and charles cooley, felt that social conflict was a process that should be in exploring social processes and social problems. conflict as a functional social process." 

the narrator is saying that the old lady made her feel uncomfortable. you know this because they say "i found that rather irksome", "perhaps it was her being so upright and trim", and "i don't think it was that, because i thought that quaintly pleasant." hope this !

i have a basic answer but if you want a more in depth