A travel agency wants to seamlessly share their social media content (Digital Leader)

Correct answer: D) An application programming interface (API).
Here's why:

A) A NoSQL database is not directly related to sharing social media content. NoSQL databases are used for storing and retrieving unstructured or semi-structured data, but they don't facilitate the sharing of content between different systems.

B) Anthos Config Management is a service for managing policies and configurations across hybrid and multi-cloud environments. While it's useful for managing infrastructure and configurations, it's not specifically designed for sharing social media content.

C) The App Engine standard environment is a platform for building and deploying applications, but it's not specifically tailored for sharing social media content with partners. It could be used as part of the solution, but it's not the primary tool for achieving seamless content sharing.

D) An application programming interface (API) is the standard way for software applications to communicate and share data with each other. Social media platforms like Facebook, Twitter, and Instagram provide APIs that allow developers to access their content and share it with other systems. By using social media APIs, the travel agency can seamlessly share their social media content with partners, enabling them to display the latest updates, promotions, and information on their own platforms.

Therefore, D) An application programming interface (API) is the most suitable choice for the travel agency to achieve seamless sharing of their social media content with partners.