Hello what do you do in World history

What effect did john hay’s open door policy letters have on the imperial powers of britain, france, germany, russia, and japan? a. it provoked the imperial powers to declare war on the united states. b. it caused the imperial powers to restrict trade in their trade with china. c. it warned the imperial powers that the united states would soon declare war on china. d. it signaled to those powers that the united states would take a larger role in world affairs than before.

Which amendment best addresses the fears of the federalists like james madison, that rights and powers not specifically listed in the consttuition or bill of rights will not be protected in the future

Choosing to engage in military action to assist another country is an example of sanctions. internationalism. o isolationism. o diplomacy.