For some time, the TV production industry was highly competitive. Due to a large number of TV brands, product quality has become the number one factor for consumers to consider. In order to increase market share, a TV manufacturer has increased research and development and further improved TV products. On the other hand, adjustments were made to the price, which appropriately reduced the price of the product. However, in the first three months after the adjustment, the market share of its TV products did not increase but decreased. Which of the following, if true, best explains the above phenomenon? ['Consumers usually consider the price differences of different products rather than the price differences of the same product over different periods.', 'A family will first consider the original brand when buying TV products again.', 'Consumers usually measure TV product quality by price.', 'Other TV manufacturers have also adjusted product prices.']