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 by far.
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 worries about its lack of nuclear weapons because of hostile relations with nuclear-armed India spanning back to the 1940s.
E) The United States and Russia have recently signaled their intentions to expand the size and variety of their nuclear arsenals.