The statement that is true about open-end credit is:
It is not typically used for a single purchase but for many purchases over a period of time.
Open-end credit, such as credit cards, allows consumers to borrow funds up to a certain limit and pay it back over time, making it ideal for multiple purchases rather than a single large purchase. The other statements either describe closed-end credit or do not accurately characterize open-end credit. For instance, a consumer loan generally refers to a closed-end credit arrangement, and payments on open-end credit can vary based on usage and outstanding balance.