B. helped prevent and cure diseases like tuberculosis and polio.
The bubonic plaque changed the social structure of Europe by this:
Before, the nobles and aristocrats were the 'body' that ran almost everything political. However, after the bubonic plague, this was shifted towards the common people. So the common people basically got more rights.
hope this helps :D
Chinese Americans faced the brutality of the Irish, who were the main competition for jobs. Labor Unions also disliked the immigrants, who were used as 'strike breakers' because of their need for jobs. After the Chinese Exclusion Act, the Chinese still created there own new element of American Society--Chinatown.
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
The one change in representation of the general court since its inception is <span>representatives from each town were allowed to be a part of the General Court</span>