Tensions Regarding Weapons Proliferation Heightened in October 2006 When

Tensions regarding weapons proliferation heightened in October 2006 when:

A) Libya used weapons of mass destruction against Syria.
B) North Korea conducted its first nuclear test.
C) India and Pakistan detonated nuclear devices within a few weeks of each other.
D) Israel conducted nuclear tests in the Atlantic Ocean.
E) Israel and Palestine attacked each other with chemical weapons.