A supermarket holds a store celebration promotion. Among them, the specific provisions are as follows: Only when purchasing category A and category B goods at least one time on the day of the store celebration, can you get a bear gif If you purchase a Class A product or a Class B product, you can get a 20% discount on all the products purchased at the time. If you purchase more than five items of the Class B product, you can apply to become a VIP member. If Zhang Li spends only one time in the supermarket on the day of the store celebration but does not purchase category B goods, which of the following must be true? ? ['It is impossible to get 20% off for the products purchased by Zhang Li.', 'Zhang Li is a VIP member and has purchased Category A goods.', "Zhang Li can't get a bear gift.", 'Zhang Li may get a bear trophy.']