Which of the Following Statements About Nuclear Weaponry Is MOST

Which of the following statements about nuclear weaponry is MOST accurate?

A) No nation has ever dismantled its entire nuclear arsenal.
B) The United States maintains the largest nuclear arsenal in the world.
C) Since the ratification of the 1968 Nuclear Non-Proliferation Treaty, there have been no new additions to the group of nations that constitute the "nuclear club."
D) Pakistan is attempting to acquire nuclear weapons technology to improve its security standing against India, which is already armed with nuclear weapons.
E) The Strategic Arms Reduction Treaty between the United States and Russia was ratified by the Senate in December 2010.