If we're talking about the final nail in the coffin than I'd guess A. I'm fairly certain that Timur the Lame didn't invade Spain. Invasion was more of the Mongol's style than putting a figurehead on any throne. Correct me if I'm wrong based on what your resources say.
There is not a specific antonym for diaspora, but the opposite of a diaspora would be the regrouping of a community or the coming together of a community. It could also be a renewal of a specific cultural group or ethnicity coming back together in a sort of revival of their culture.
They do not recognize the Armenian genocide because they were killing the
In 1381 CE peasants led by Jack Straw marched on London and petitioned the government to abolish the high taxes that they argued were hurting the "common people" such as farmers.
I believe most look at they look at their employees as a valuable asset to the company because they help most of the work get completed at the factory