Answer: Databricks Notebooks support real-time coauthoring on a single notebook

The correct answer is B. Databricks Notebooks support real-time coauthoring on a single notebook, which directly supports the senior data engineer's claim about collaborative features. Real-time coauthoring allows multiple team members to work simultaneously on the same notebook, seeing each other's changes in real-time, which is a key collaborative feature for team-based data engineering work. **Explanation of other options:** - **A**: Automatic change-tracking and versioning is a version control feature, not specifically a collaborative feature for simultaneous work. - **C**: Commenting and notification comments are communication features but don't enable real-time collaborative editing. - **D**: Support for multiple languages is a technical capability, not a collaborative feature. - **E**: Interactive data visualizations are analytical features, not collaborative features. The senior data engineer's claim likely focuses on collaborative capabilities that enable team members to work together effectively on notebooks, making real-time coauthoring the most relevant feature.

Author: Keng Suppaseth