I would strongly suggest indaba. It allows each country to be heard and they can come to a conclusion quickly. They can only voice their opinion in a certain way. A country gives their Red Line in a diplomatic way and the other can respond with their hard limits.
Well they tried to build more jobs to put people into business but they ended getting layed off because they couldnt afford to pay for their workers and they failed because more and more people lost there jobs
Now I'm not 100% sure here but C is your best bet
The supply of books were increasing greatly in Europe from the 15th century to the 18th century.