Which amendment to the U.S. Constitution ensures freedom of religion?

Which amendment to the U.S. Constitution ensures freedom of religion? http://www.america.govindex/faq6/q1.html.rss A. The First Amendment http://america.amgovcms.iip/index/faq6/q1/a.-the-first-amendment http://america.amgovcms.iip/index/faq6/q1/a.-the-first-amendment Fri, 25 Jun 2010 12:21:35 -0400 B. The Second Amendment http://america.amgovcms.iip/index/faq6/q1/b.-the-second-amendment http://america.amgovcms.iip/index/faq6/q1/b.-the-second-amendment Fri, 25 Jun 2010 12:21:42 -0400 C. The Fifth Amendment http://america.amgovcms.iip/index/faq6/q1/c.-the-fifth-amendment http://america.amgovcms.iip/index/faq6/q1/c.-the-fifth-amendment Fri, 25 Jun 2010 12:21:49 -0400