[X] [Low] Force them to follow the spirit of the law (Potential stability loss, potential war with vassal)
[X] [Low] Restrict right to wage war to defensive only (Potential stability loss, potential war with vassal)
[X] [Low] Introduce black soil to improve their conditions (Teaches black soil to vassal)
[X] [Low] Introduce mill technology to improve their conditions (Teaches water mill to vassal)
[X] [Low] Send over assistance (Transfer 1 Econ + 1 Martial)
Get them to follow our laws and to stop picking fights with their neighbours so that they actually try and do stuff with the technology we're giving them.
[X] [High] Humiliate (+1 Prestige, completes immediately)
We have so many better things to do than go at war. Picking this option will guarantee that all of our actions next turn can be used to solve our internal issues. It also means there's no downside whatsoever to keeping the Red Banner at home, which is what we want to do. An early end to the war should also keep down the spread of a warlike religion.
[X] [RB] Remain at rest
We need them in Valleyhome so that they can be reconverted into worshipping the right gods again.
[X] [React] Main Improve Annual Festival
It'll provide Art and, importantly, Stability, plus help with cultural issues. It'll certainly help get refugees integrated into our culture and system.
[X] [Refugee] Bring in a bit more than usual (-1 Stab, potential further loss, +4-5 Econ)
We have to help people and the Economy will be very useful considering we plan to start on a megaproject soon. Economy is just useful in general really. This generosity, when combined with the festival, should give our priests a fair amount of extra power in the debates.