Which of the Following Is an Example of the Limits

Which of the following is an example of the limits of international collaboration among states, especially within the confines of the United Nations?

A) Condemnation by most nations of the terrorist actions of al-Qaida in 2001 in America.
B) Successful coalition that stood up to Saddam Hussein in 1990-1991 when he sent his troops into neighboring Kuwait.
C) General support for the campaign to remove the Taliban from Afghanistan in the aftermath of September 11.
D) Quarrels among nations over the United States' decision to invade Iraq to remove Saddam from power.
E) Efforts of the World Bank to help Third World countries receive loans for crops.