Informal social rules are: select one: a. usually learned by watching how people behave and then imitating that behavior. b. another way to describe dining manners. c. avoided by cultures that condemn materialism. d. specifically taught "rights" and "wrongs" of how to behave.

The answer to your question is,

A. Usually learned by watching how people behave and then imitating that behavior.

- Mabel <3

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.