The correct choice reflects the purpose of a partner portal, which is specifically designed to facilitate access for vendors or partners to data that is stored within the Common Data Service (now known as Microsoft Dataverse). This type of portal is intended to enable collaboration and interaction between a business and its partners, allowing them to access necessary data, share information, and engage in transactions or communications related to their business relationship.
In contrast, a customer portal primarily caters to individuals who are purchasing or using the products/services of a company, offering a different set of capabilities focused on customer support and engagement. A community portal typically serves a broader audience, often allowing user-generated content and community interactions, while an employee portal is tailored for internal use, providing employees access to company resources, HR information, and internal communications. Each of these portals is designed with distinct user groups and use cases in mind, with the partner portal being uniquely suited for vendor interaction with the organization's data.