About the American major cities, which of the following statements are true
选项：

A:Washington is governed directly by the federal government and hosts the headquarters of the United Nations.
B:New York is the largest city and the commercial and financial center of the United States.
C:San Francisco is the second largest city after New York and the world-famous Hollywood and Disneyland are located here.
D:Los Angeles, San Francisco and San Diego all belong to California.