You need to provide content for a business chatbot that will help answer simple user queries.
What are three ways to create question and answer text by using QnA Maker? Each correct answer presents a complete solution. 
NOTE: Each correct selection is worth one point.
A.  Generate the questions and answers from an existing webpage.
B.  Use automated machine learning to train a model based on a file that contains the questions.
C.  Manually enter the questions and answers.
D.  Connect the bot to the Cortana channel and ask questions by using Cortana.
E.  Import chit-chat content from a predefined data source.