From what I know ethnocentrism means someone who thinks their culture is higher than another therefore I would go with A.
The main cause of shays rebellion where the large amount of debt the farmers where experiencing in the 1780s. another cause is the lack of economic crisis laws in massachusetts. Some other causes where because of bad harvests economic depression and high taxes threating farmers with the loss of their farms.
The question ask on which of the following choices where the weaknesses apparent in American society in the late 1800's and the best answer among the choices is letter A.People became too materialistic, C. The economic system didn't work well and D. The government system adjusted to change too alowly.
I would say this would be A..not sure though.
The answer to your question is ... A civil war between the Taira and Minamoto clans.<span>
I truly hope this helps you.</span>