单项选择题
A．the product can't be delivered on time B．the product is out - of - date and unsatisfactory C．the company doesn't accept the returned product D．the company can't send a new catalogue on time
A．gives them opportunities to order B．provides good service and quality C．guarantees the quickest delivery D．sends new catalogues to them
A．keeps its promise B．provides the same products C．sells its products at a low price D．delivers its products without delay