To enable Provider Search for external users on an Experience Cloud site, two key configurations are required. First, the user interface element, the 'Provider Search' Lightning Web Component, must be added to a page within the Experience Builder so users can interact with it. Second, users must have the necessary data permissions to see the search results. The search functionality queries the CareProviderSearchableField object. Therefore, the external user's profile or an assigned permission set must have 'Read' access to this object to view the indexed provider data.

B. Create a sharing rule on the Care Provider Searchable Field object to share with external users.

Sharing rules grant record-level access, but the primary requirement here is object-level 'Read' permission, which is controlled by profiles and permission sets.

D. Give the site user profile Read access to the Data Pipeline object.

The Data Pipeline object is related to the backend Data Processing Engine jobs that populate the search index, not the end-user search experience itself.

1. Salesforce Health Cloud Developer Guide: Set Up Provider Search for Users. The documentation explicitly states the required steps:

"Make the Provider Search component available to your users by adding it to a page in your org or community." (Supports Answer A)

Under the "Required Permissions" section: "To let users search for providers, give them Read access to the Care Provider Searchable Field object." (Supports Answer C)

2. Salesforce Help: Provider Search. This document outlines the feature and its setup, reinforcing the need for both the UI component placement and the specific object permission. It details that the CareProviderSearchableField object stores the flattened, searchable data and access to it is fundamental for the component to function.