Limitations on Exercise. This option shall be subject to forfeiture until the Participant becomes vested in such Award according to the schedule set forth below. This option shall not be exercisable until at least one year has expired after the granting of this option, during which time the Participant shall have been in the continuous employ of the Corporation or an Affiliate; provided, however, that the option shall become exercisable immediately in the event of a Qualified Termination of Employment of the Participant, without regard to the limitations otherwise set forth below in this subsection. At any time during the period of this option after the end of the first year, the Participant may purchase up to 30 percent of the shares covered by this option; after the end of the second year, an additional 30 percent; and after the end of the third year, the remaining 40 percent of the total number of shares covered by the option, so that, upon the expiration of the third year, the Participant will have become entitled to purchase all shares subject to this option; provided, however, that if the Participant's employment is terminated for any reason other than death, Retirement, or Total and Permanent Disability, this option shall only be exercisable for three months following such termination and only for the number of shares which were exercisable on the date of such termination. In no event, however, may this option be exercised more than ten (10) years after the date of its grant.