You are building a chatbot that will use natural language processing (NLP) to perform the following actions based on the text input of a user. • Accept customer...

You are building a chatbot that will use natural language processing (NLP) to perform the following actions based on the text input of a user.
• Accept customer orders.
• Retrieve support documents.
• Retrieve order status updates.
Which type of NLP should you use?

A. sentiment analysis B. named entity recognition C. translation D. language modeling