The Cook Illinois Stock Option Plan is a comprehensive program implemented by Sunrise Assisted Living, Inc. for the grant of Incentive Stock Options (SOS) and Nonqualified Stock Options (SOS) to its employees, consultants, and advisers. This carefully structured plan aims to reward and incentivize individuals who play a crucial role in the success and growth of the company. The Cook Illinois Stock Option Plan offers two types of stock options: Incentive Stock Options (SOS) and Nonqualified Stock Options (SOS). SOS are mainly offered to key employees and provide certain tax advantages. SOS, on the other hand, are available to employees, consultants, and advisers who may not meet the criteria for SOS. SOS under the Cook Illinois Stock Option Plan allow the holder to purchase company stock at a predetermined price, known as the exercise price or strike price. These options are subjected to specific rules and limits imposed by the Internal Revenue Code, ensuring tax advantages for employees upon the sale of the underlying stock. SOS, another component of the Cook Illinois Stock Option Plan, offer more flexibility in terms of eligibility and taxation. Unlike SOS, SOS are not subject to the same strict tax regulations. They allow recipients to purchase company shares at a predetermined price but without the same tax advantages as SOS. Overall, the Cook Illinois Stock Option Plan aims to provide employees, consultants, and advisers with an opportunity to participate in the company's success and growth by granting them the right to acquire company stock at a favorable price. This incentivizes individuals to contribute their skills and expertise towards achieving the company's goals. In summary, the Cook Illinois Stock Option Plan of Sunrise Assisted Living, Inc. encompasses two types of stock options — Incentive Stock OptionsSOSOs) and Nonqualified Stock Options (SOS). These options are offered to employees, consultants, and advisers as a means to reward their contributions and align their interests with the company's growth.