Respuesta :
The author is using an anecdote because he is telling a true story about someone or something that happened.
Answer: B) Anecdote.
Explanation: an anecdote is a short amusing or interesting story about a real incident or person, in order to entertain the audience, explain or exemplify something. In the given excerpt we can see a clear example of an anecdote, where the author tells the story of how an invention completely change the business related with his first job (between 1977 and 1995) and how he had to cope with it.