Answer: A, B, C, D, E

Credit cards can obtain massive transaction data through the merchant-customer bilateral market. As data applications and risk control methods mature, credit cards are gradually becoming In the past, the focus on mid-to-high-end customers has shifted to focus on ordinary consumers, forming inclusive financial service capabilities. It can be seen that credit cards have the characteristics of "massive users", "big data advantages", "inclusive ability", "small amount, high frequency and speed".