Which statements about September 11, 2001 are true? Choose all answers that are correct.

1. Osama bin Laden stated that he and al-Qaeda were conducting a holy jihad against America.

2. Al-Qaeda terrorists hijacked four American airliners and killed over 3,000 people.

3. Saddam Hussein masterminded the attack on the World Trade Center.

4. A large majority of Muslims around the world supported al-Qaeda's attacks against the U. S.