Which of the following choices was not part of the Japanese feudal system?

The correct answer to this open question is the following.

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The Japanese feudal system was the period of history in Japan that began in 1185 and ended in 1603. It was a time when landlords used vassals that served them in the farm fields and protected the lord's family.  Lords allowed vassals to work the farmlands in exchange for loyalty and permanent service. It was a tie when the Shogunates split the land and distru¿buted some portions between loyal vassals that were supervised by the Shugo and the Jitto. However, the vassals never owned the land, it always belonged to landlords.

explanation:

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