Red scare was widespread fear, according to which it was thought that immigrants especially from Russia, southern Europe, and eastern Europe, might intend to overthrow the United States government.
The revolution in Russia is the one among the following choices that was one cause of the outbreak of Red scare. The correct option among all the options that are given in the question is the first option or option "A". I hope that this is the answer you were looking for and it has helped you.
it gotta be d Trade between the states declined during the period of the Articles of Confederation (1781-1789) for all these reasons except "national regulation of trade" since there was no regulation.
