a customer file should contain which of the following? the credit score of the customer the annual income of…

Answer:

All of the above (the credit score of the customer, the annual income of the customer, the payment processing method)

Brief Explanations:

In business - specifically in customer - relationship management and accounting, a customer file often contains financial - related information like credit score, income for risk - assessment and financial analysis, and payment processing method for transactional purposes.