Answer:
C Trade between Europe and Asia increased.
Explanation:
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politicak machine granted favour in exchange for voters.
The final collapse of the Shogunate was brought about by the alliance of Satsuma and Choshu. These two antagonistic western clans formed an alliance as a result of the Shogunate's expedition against Choshu in 1866. The alliance worked out a proposal for a complete overthrow of the Shogunate.