A company reported the following amounts at the end of 2020: Total sales revenue = $550,000 Sales discounts = $13,000 Sales returns = $40,000 Sales allowances = $17,000. In addition, the company estimates that an additional $10,000 of sales returns from December sales will occur in January. What were the company's net revenues for 2020? You must provide an answer to this question before selecting "NEXT." If you skip this question it will be marked as incorrect and you will not be able to return to it later during the exam. Select one: a. $550,000 b. $520,000 c. $470,000 d. $510,000 e. $480,000