Which explains why U.S. leaders are eager to get North Korea to sign the Nuclear Nonproliferation Treaty?

ANorth Korea has targeted U.S. allies with threats of nuclear attacks and ultimate destruction.
BNorth Korea has launched a nuclear attack against the United States in the past.
CNorth Korea has demonstrated that it has access to more nuclear weapons than any other country.
DNorth Korea has the ability to fire a nuclear weapon that could reach U.S. territory.

Verified Answer :

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From that list, the option that explains why US leaders are eager to get North Korea to sign the Nuclear Nonproliferation Treaty is A. North Korea has targeted US allies with threats of nuclear attacks and ultimate destruction. Within firing range of North Korea exist two strong US allies in Asia: Japan and South Korea, both of whom have been threatened be North Korea in the past.

Hi! U.S Leaders are eager to get North Korea to sign the Nuclear Nonproliferation  Treaty Because... A) North Korea has targeted U.S allies with threats of nuclear attacks and ultimate destruction!! Good Luck!