In front of gathering US president Bush made a statement which says-- ‘’The American space programme must go on. Exploration is not an option we choose, it is a desire written in the human heart.’’ Which of the following was the occasion which prompted US President to make such a statement ?

On U.N.O.’s weapon Inspector’s revelation that Iraq had some weapons of mass destruction

On explosion of U.S. Space shuttle Columbia which killed all seven astronauts on board

Presenting the annual budget of the U.S.A. which shows a deficit of 30 billion US $ over which the opposition made a hue and cry

On providing a special aid to Russia and S.Korea’s defence programme so that they may support US view point on the issue of post war rebuilding of Iraq

None of these