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.
Hawaii, Puerto Rico, Philippines, and Cuba
It is the story of a group of thirty people who travel as pilgrims to Canterbury (England). The pilgrims, who come from all layers of society, tell stories to each other to kill time while they travel to Canterbury.
In 7th century A.D modern day Saudi Arabia.
buying new military defense technology