Final answer:
An E-commerce system is the information system that allows customers to purchase goods and services from a company's website.C) E-commerce system
Step-by-step explanation:
The type of information system that enables customers to buy goods and services from a firm's website is a C) E-commerce system.
An E-commerce system provides a platform for business transactions over the internet, allowing for the exchange of goods and services between buyers and sellers. The system typically handles various aspects of the online sales process, including product display, order processing, payment, and sometimes even logistics for shipping.