South Pacific Nuclear Free Zone Treaty was signed by the United States of America,  United Kingdom and_________ ?

A. Soviet Union
B. China
C. France
D. Germany

13 full members ─ Australia, Cook Islands, Fiji, Kiribati, Nauru, New Zealand, Niue, Papua New Guinea, Samoa, Solomon Islands, Tonga, Tuvalu, Vanuatu. Of the five nuclear-weapon states, France and the United Kingdom have ratified all three protocols while Russia and China have only ratified Protocols II and III. U.S. ratification of all three protocols is pending.