Japanese electrical appliances were very popular in China in the 1980s. Since the beginning of the 1990s, the exchange rate of the RMB against major western currencies (including the Japanese yen) has been continuously reduced, which will increase the RMB prices of Japanese electrical appliances entering the Chinese market. Sales have not fallen as a result. Which of the following best explains why Nissan's sales are so high? ["Japan's domestic electrical appliance manufacturers control the increase in costs within a certain range.", 'The cost increase of Japanese electrical appliance manufacturers is smaller than that of domestic domestic electrical appliances.', 'Although the current sales of Japanese appliances have not fallen, they will show a downward trend in the next two to three years.', 'Chinese consumers pay more attention to the excellent quality of Nissan appliances, making up for the unfavorable situation of rising prices.']