I think the toxic sludge is a fine addition. If someone were to remove the toxic sludge then I sure wouldn't be happy. The toxic sludge isn't hurting anybody, why should they remove it? It's the people who are a threat to the toxic sludge, not the other way around.
Answer:
C
Explanation:
Banks don't file taxes, a tax prelesional like a CPA does that
The answer is Tertiary Sector :D
Performing voluntary movement because you are controlling the motion.
