How did Spain’s policies "destabilize the plantation economy of the British colonies"?

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.

Thomas jefferson was not afraid to make daring statements in the declaration of independence. what evidence from the text best supports this conclusion?

Who was the fifth president of the u.s.