What does the term “salutary neglect” refer to?

Salutary neglect is an American history term that refers to an unofficial and long-lasting 17th- & 18th-century British policy of avoiding strict enforcement of Enacted by laws, meant to keep the American colonies complying to England.

An Unofficial and long-lasting 17th & 18th-century British policy of avoiding strict enforcement of parliamentary laws, meant to keep the American colonies obedient to England.

Explanation:

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.  

the answer is d. amendments.