At the time of exercise and as a condition thereto, or at such other time as the amount of such obligation becomes determinable, the optionee shall remit to the Company in cash all applicable federal and state withholding and employment taxes. Such obligation to remit may be satisfied, if authorized by the Administrator in its sole discretion, after considering any tax, accounting and financial consequences, by the optionee’s (a) delivery of a promissory note in the required amount on such terms as the Administrator deems appropriate, (b) tendering to the Company previously owned shares of Common Stock or other securities of the Company with a fair market value equal to the required amount, or (c) agreeing to have shares of Common Stock (with a fair market value equal to the required amount), which are acquired upon exercise of the Option, withheld by the Company.