Here are the best headlines for each paragraph based on the content provided:
C. Short history of AI creation - This paragraph discusses the origins of AI, including the Dartmouth Conference and early developments.
B. How AI is used - This paragraph outlines the various applications of AI in different sectors, such as healthcare and finance.
A. Risks of AI - This paragraph addresses concerns and dangers associated with the use of AI, including ethical implications and job displacement.
E. In search of balance - This conclusion emphasizes the need for careful consideration and responsible development of AI, highlighting both its positive impact and the ethical concerns it raises.
The extra headline would be D. How AI works which does not fit any of the paragraphs provided.