Which is the only country to have announced its withdrawal from the Nuclear Non-Proliferation Treaty?

Which is the only country to have announced its withdrawal from the Nuclear Non-Proliferation Treaty? http://www.america.govrelations/security/faq/q4.html.rss A. India http://america.amgovcms.iip/relations/security/faq/q4/a.-india http://america.amgovcms.iip/relations/security/faq/q4/a.-india Fri, 08 Jan 2010 16:36:38 -0500 B. North Korea http://america.amgovcms.iip/relations/security/faq/q4/b.-north-korea http://america.amgovcms.iip/relations/security/faq/q4/b.-north-korea Fri, 08 Jan 2010 16:36:48 -0500 C. South Africa http://america.amgovcms.iip/relations/security/faq/q4/c.-south-africa http://america.amgovcms.iip/relations/security/faq/q4/c.-south-africa Fri, 08 Jan 2010 16:36:55 -0500 D. Belarus http://america.amgovcms.iip/relations/security/faq/q4/d.-belarus http://america.amgovcms.iip/relations/security/faq/q4/d.-belarus Fri, 08 Jan 2010 16:37:06 -0500