Exercise of Option. Exercise of the purchase rights represented by this Option may be made, in whole or in part, at any time or times during the Exercise Period by delivery to the Company at its executive offices of a duly executed copy of the Notice of Exercise Form annexed hereto; and, if the Holder opts to make cash payment, within 3 business days of the date said Notice of Exercise is delivered to the Company, the Company shall have received payment of the aggregate Exercise Price of the shares thereby purchased by wire transfer or cashier’s check or otherwise by agreement with the Company. Notwithstanding anything herein to the contrary, the Holder shall not be required to physically surrender this Option to the Company until the Holder has purchased all of the Option Shares available hereunder and the Option has been exercised in full, in which case, the Holder shall surrender this Option to the Company for cancellation within 3 business days of the date the final Notice of Exercise is delivered to the Company.