Question One Super Fit Bodies places an advertisement on their window stating: "The first 20 people to complete interval training on our brand new treadmill machines within five minutes, will be rewarded with one year's free membership." Roshanda notices the advertisement and completes the task, within five minutes. Super Fit Bodies is one of the first 20 people. While Roshanda is completing the interval training, the manager places a notice on the window withdrawing the promotion; the manager is refusing to give Roshanda her free membership for 12 months, stating that the promotion is no longer valid. With the use of decided cases advise Roshanda paying particular attention as to whether: 1. The advertisement amounted to an offer; 2. There was effective revocation: 3. There was acceptance; and 4. A contract existed between Roshanda and the owners of Super Fit Bodies. (25 marks)