Where are the primary and secondary documents?
Answer: D) a mental set
Explanation:
His mental set is giving him a procedure of wrong ways into the solving-problems. He is having mental set where he is convinced that the children will listen to him and that they will do their homework only if he is giving them threats which means that he is trying to control them with anger and fear.
Since his mental set is in a wrong way, he does not believe that kindness will bring him more productivity in class.
The answer is B. Propaganda is used to swa people your way. Like in WW1&WW2 the governments used propaganda posters to get people to join the military and such.
The answer could be either Appropiate or Accurate, that is that the sentences, and hence the text are well written, with correct grammar and spelling, and convey the intended message.
I believe it is the 3rd one.