Each Option shall be exercisable in such installments (which need not be equal) and at such times as may be designated by the Committee or the Board as set forth in the Option Agreement. Unless otherwise provided in the Agreement, to the extent not exercised, installments shall accumulate and be exercisable, in whole or in part, at any time after becoming exercisable, but not later than the date the Option expires. Upon the death, Disability or Retirement of a Grantee, all Options shall become immediately exercisable , provided, however, that the Committee shall have the authority to grant Options that do not become immediately exercisable in the event of the death, Disability or Retirement of a Grantee by including such provision in the Option Agreement evidencing such Option . Notwithstanding the foregoing, the Committee (or, with respect to Directors, the Board) may accelerate the exercisability of any Option or portion thereof at any time.