Answer: C. extend an organization's intranet to outside customers.
Step-by-step explanation:
An extranet is a private network that uses the Internet to securely share part of an organization's internal network with external stakeholders, such as customers, partners, and suppliers. This allows these stakeholders to access certain information and resources on the organization's intranet, such as product catalogs, order forms, and customer service portals. Extranets are often used to improve communication and collaboration between an organization and its stakeholders, and to provide external stakeholders with access to information that would not be available to them through the public Internet.