The correct answer is D) By using the Permissions button on the Catalog Explorer table details page. Here's a step-by-step guide to control access:

1. Navigate to Catalog Explorer: Access it from the Databricks workspace sidebar.
2. Locate the Feature Table: Find and click on the feature table you wish to manage permissions for to view its details page.
3. Access Permissions Button: On the table details page, click the Permissions button.
4. Manage Permissions: In the dialog box, you can grant or revoke access to users and groups, and set specific permission levels (e.g., READ, WRITE, MANAGE).

Incorrect Options:

• A) fe.manage_permissions function: This function does not exist in the Unity Catalog API.
• B) fe.update_access function: This function is not available for managing feature table permissions.
• C) fe.control_access function: This function also does not exist.

Key Points:

• Unity Catalog offers a centralized method for managing feature table permissions.
• Access control is primarily handled through the Catalog Explorer interface.
• Proper access control is essential for protecting sensitive data and upholding data governance standards.