What did the U. S. Congress pass and the president sign into law in December 2000?

National Moment of Remembrance Act

Explanation:

They did this to ensure the sacrifices of America 's fallen heroes are never forgotten, and in December 2000, the U.S. Congress passed and the president signed into law “The National Moment of Remembrance Act,” creating the White House Commission on the National Moment of Remembrance.

demand is the need and oportunity to buy a given good or service.