Answer: De-Stalinisation caused problems because people in Hungary looked at Russia slackening control and wanted that in their country.
The answer is
B. Spain and the U.S. signed the Adams-Onis Treaty
Hope I helped!
There were several events that prompted this meeting, but the most important was the passage of the "Intolerable Acts" when levied taxes on the Colonists and eventually led to the outbreak of war.
<span>Great Britain claimed all of North America East of the Mississippi River (ownership of Ohio River Valley)</span>