You plan to develop a bot that will enable users to query a knowledge base by using natural language processing. Which two services should you include in the so...

You plan to develop a bot that will enable users to query a knowledge base by using natural language processing.
Which two services should you include in the solution? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. Language Service B. Azure Bot Service C. Form Recognizer D. Anomaly Detector