Which of the following can describe a characteristic of credit cards?

Credit cards promote consumer flexibility because they allow individuals to make purchases on credit rather than requiring immediate payment. This enables consumers to manage their cash flow by making larger purchases now and paying them off over time. Additionally, credit cards often come with various rewards and incentives, such as cashback or travel points, which further enhance consumer flexibility in spending choices and financial management.

In contrast, while some credit cards may occasionally offer promotional periods with no interest, most charge interest on unpaid balances, so they do not always charge no interest. Credit cards are not a form of cash; rather, they provide access to borrowed funds that must be repaid. Lastly, credit cards do require repayment of the borrowed amount, in addition to any accrued interest, so they do not imply a lack of repayment obligation.