Concerns About Nuclear Proliferation Mounted in 1998 When

Concerns about nuclear proliferation mounted in 1998 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) North Korea tested a long-range missile under the guise of attempting to launch a satellite.