This excerpt taken from the ROST 8-K filed May 23, 2008.
Effect of Change in Control on Option. In the event of a Change in Control, except to the extent that the Committee determines to cash out the Option in accordance with Section 14.1(c) of the Plan, the Committee, in its discretion, shall either (a) arrange for the surviving, continuing, successor, or purchasing corporation or other business entity or parent thereof, as the case may be (the Acquiror), to either assume or continue the Companys rights and obligations under the Option or substitute for the Option a substantially equivalent option for the Acquirors stock, or (b) provide that any unexercised portion of the Option shall be immediately exercisable and vested in full as of a date prior to the Change in Control specified by the Committee provided that the Participants Service has not terminated prior to such date. Any exercise of the Option that was permissible solely by reason of this Section 8.1 shall be conditioned upon the consummation of the Change in Control. The Option shall terminate and cease to be outstanding effective as of the time of the Change in Control to the extent that the Option is neither assumed by the Acquiror in connection with the Change in Control nor exercised as of the time of the Change in Control.