What was the United States’ response to the Soviet Union’s presence in Afghanistan?

The United States sent troops to join the anti-government forces in Afghanistan.
The United States provided weapons to support anti-government groups in Afghanistan.
The United States decided to take a neutral position regarding the Soviet Union’s actions.
The United States sent a diplomat to Afghanistan to express concern about the Soviet Union’s actions.

Which of the following factors would be a likely reason for low population density

By the end of the 1800s, there was a change in the nature of the immigrants coming to the united states. immigration from northern europe—england, ireland, germany, and scandinavia—declined, while immigration from italy, russia, and austria-hungary grew. in fact, between 1900 and 1910, more than three-fourths of all immigrants came from these three countries. unfortunately, these countries were far removed england, the home of our founders, and the immigrants who came from them had a hard time adjusting to life in their new country.

Why did the collapse of the soviet union and the power vacuum in the balkans lead to bosnian genocide?