Which of the Following Is the Definition of Natural Style

Which of the following is the definition of natural style used in the book?

A) Natural style is what you develop after completing the chapters included in this book.
B) Natural style is your rational way of working with others to help them achieve their goals and aspirations.
C) Natural style is doing what you like with the hopes of helping others achieve what you believe is best for them.
D) Natural style is your spontaneous way of working with others to help them achieve their goals.