The purpose of King's letter is to cause the Church to fight racial injustice.
As you already know, King was a proponent of equal human rights, for both black, and white people. He wanted the Church to be aware of inequalities in the world and fight racism so as to erase those inequalities.
City-wide curfew should not be instituted because this limits teenagers' activity and involvement in the outside world at night. Many teenagers would be upset with this curfew because they would not be allowed to ride bikes outside or hang out with their friends without getting into trouble. A curfew like this one would encourage teenagers to stay indoors on their phones instead of outside enjoying the night air. Teenagers have to stay in school most of the day from early morning hours to the early afternoon; many would be sad that they must miss out on outdoor time after taking their time to do their homework at home, study, and shower, because of a curfew.
Answer:
I'd go with A, as my answer
False. Monotone speakers are boring and no one likes to listen to them, they are not exciting and people zone out when they talk xD