What is an approach for integrating a database into an IBM Watson solution?
A . Use the Discovery service to search through candidate queries and surface the ones most relevant to the user input.
B . Use the Document Conversion service to search the database for the entries with the strongest relationship to the user input.
C . Use the intent from the Natural Language Classifier as part of a query.
D . Use the concepts from Natural Language Understanding to search the database for the most relevant documents.
Answer: D