I am mostly sure that the answer to this is 1. I am really sorry if that's wrong.
E. indecipherable language
Answer: “Tourette syndrome”
Explanation: took the assignment on edge
The author acted like he was cleaning laundry with the world and how a few places need to be "cleaned up." Even though an international clean-up is needed, the solution is not as simple as cleaning laundry, should be your answer. :D