Natural language processing can be divided into the two subfields of: A. context and expectations B. generation and understanding C. semantics of pragmatics D. recognition and synthesis E. None of the above

The correct answer is: D. recognition and synthesis

Natural language processing (NLP) is a field of computer science, artificial intelligence, and computational linguistics concerned with the interactions between computers and human (natural) languages, in particular how to program computers to process and analyze large amounts of natural language data.

NLP can be divided into two subfields:

• Natural language understanding (NLU): NLU is the ability of a computer to understand human language. This includes the ability to parse sentences, extract meaning from words and phrases, and understand the context of a conversation.
• Natural language generation (NLG): NLG is the ability of a computer to generate human language. This includes the ability to translate text from one language to another, write different kinds of creative content, and answer questions in a natural way.

Options A, B, and C are not correct because they are not subfields of NLP. Option E is not correct because it is not a valid option.