Which of the Following Is One of the Three Reasons

Which of the following is one of the three reasons President George W.Bush gave for Operation Iraqi Freedom?

A) to make sure Iraq would not be able to acquire weapons of mass destruction from Iran
B) to help the government of Iraq fight the terrorist insurgents who were trying to take over
C) to provide aid to Prime Minister Tony Blair,who was prepared to lead the war against Saddam
D) to help change the current regime so the Iraqi people would be free and the threat to Iraq's neighbors would be reduced