You are building a Language Understanding model for an e-commerce chatbot. Users can speak or type their billing address when prompted by the chatbot. You need ...

You are building a Language Understanding model for an e-commerce chatbot. Users can speak or type their billing address when prompted by the chatbot.
You need to construct an entity to capture billing addresses.
Which entity type should you use?

A. machine learned B. Regex C. list D. Pattern.any