How is this article organized? Why did the author likely choose this organizational structure? (A) by comparing nursing specialties; to highlight the different opportunities available in the nursing profession (B) using detailed description; to explain the different requirements, opportunities and responsibilities of the nursing profession (C) using chronological order; to explain the history of the nursing profession and how it has developed over time (D) using a problem-solution structure; to describe problems associated with nursing and make suggestions for improvements