What occurred on September 11, 2001 in the United States?

A. UN inspectors were denied entry into the United States to search for weapons of mass destruction.
B
Japanese planes bombed the US Naval fleet at Pearl Harbor.
C
Terrorists placed a bomb in the World Trade Center and attempted to blown up the building.
D
Terrorists attacked the United States by hijacking planes and crashing them into the World Trade Center and Pentagon, and another plane crashed in a field in Pennsylvania.

Question

What occurred on September 11, 2001 in the United States?

A. UN inspectors were denied entry into the United States to search for weapons of mass destruction.
B
Japanese planes bombed the US Naval fleet at Pearl Harbor.
C
Terrorists placed a bomb in the World Trade Center and attempted to blown up the building.
D
Terrorists attacked the United States by hijacking planes and crashing them into the World Trade Center and Pentagon, and another plane crashed in a field in Pennsylvania.