If you die without having fully exercised the Option, then any Shares Granted under the Option that are not yet vested (but which have not lapsed or been forfeited) at that time shall thereupon become fully vested and (a) the Option may be exercised, subject to the UK Sub-Plan, by your personal representative(s) for the full number of Shares Granted (less any shares for which the Option was previously exercised), but (b), such person's right to exercise the Option shall terminate not later than one (1) year after the date of your death.