Paekche is correct i think. Never remeber them in that section.
Can you Copy & paste the story, then put the Answer choices for me? This is kinda hard for me to understand, but I would love to help :)
It shows that every one has right to exist and do what they want in a sense.
In simple terms, scrubbing the stain only made it worse. Exacerbating means to make something worse than what it already is.