Government security means:
(1) A security that is a direct obligation of, or obligation guaranteed as to principal and interest by, the United States;
(2) A security that is issued or guaranteed by a corporation in which the United States has a direct or indirect interest and which is designated by the Secretary of the Treasury for exemption as necessary or appropriate in the public interest or for the protection of investors;
(3) A security issued or guaranteed as to principal and interest by any corporation whose securities are designated, by statute specifically naming the corporation, to constitute exempt securities within the meaning of the laws administered by the Securities and Exchange Commission; or
(4) Any put, call, straddle, option, or privilege on a security described in paragraph (i)(1), (2), or (3) of this section other than a put, call, straddle, option, or privilege that is traded on one or more national securities exchanges, or for which quotations are disseminated through an automated quotation system operated by a registered securities association.