The answer would have to be the third option
He attended a meeting of Bolshevik leaders in Petrograd.
Miguel Hidalgo y Costilla launched the war with the issuing of his "Grito de Delores"
Answer:
Get more into real life situations. For example something that will make this decade more interested. Instead of something for 1875 that everyone will get bored of.
Explanation:
David Wilmot prohibited slavery in the territory
