The terrorist attacks of september 11,2001 led the federal government to create the

The terrorist attacks of September 11, 2001 led the federal government to create the Department of Homeland Security.

Explanation:

The United States Department of Homeland Security is a cabinet department of the United States Government with the responsibility of protecting the American territory from terrorist attacks and responding to natural disasters. The department was created from 24 federal agencies already in existence in response to the attacks of September 11, 2001.

While the Department of Defense is responsible for military actions, the Department of Homeland Security works in the civilian sphere to protect the United States inside and outside its borders. Its objective is to prepare, prevent and respond to national emergencies, especially terrorism.

supplies had to travel a long distance across water on ships that were often attacked, so they did not reach europe

the answer is a) high entry costs