I believe it is A.) The seperation of church and state.
Answer:
Seward refusing to protest Alexander II's destruction of the Polish uprising
Woodrow Wilson's initial apprehesnion at joining WW1
Extra example: Franklin Roosevelt's refusal to overtly join the Allied Powers in early WW2.
It ruled the act constitutional.
Answer:
This rebellion demonstrated the weaknesses of the Articles of Confederation, and convinced many states of the need for a stronger central government.
Explanation:
The primary impact of Shays' Rebellion on the formation of Constitution was a more powerful central government capable of keeping the states in order. The rebellion made delegates fearful of the possibility of the entire country collapsing into anarchy in the absence of a powerful central government