Whenever this Agreement requires that notice be given by or to the Company or Optionee, such notice shall be given to the Company at the address first set forth above (or to such other address as the Company may communicate to Optionee under this Section 7.6) and to Optionee at such address as is set forth on the books and records of the Company for the mailing of any documents with respect to Optionee as follows: (a) by personal delivery, in which case notice shall be deemed to have been given on the date of delivery; (b) by certified United States mail, in which case notice shall be deemed to have been given two (2) days after deposit of such notice with the United States Postal Service; or (c) by DHL, Federal Express, United Parcel Service, or similar internationally-recognized overnight delivery service, in which case notice shall be deemed to have been given one (I) day after deposit of such notice or instrument with such service.