What is the preface or introduction to a book?

a. an alphabetical list of all the specialized words and terms used in the book and their definitions

b. a page at the front of a book that lists units and chapters with their page numbers

c. an alphabetical list of all topics covered in the book and the pages on which they can be found

d. a statement of the author’s purpose in writing the book, which may include suggestions for using the book

the correct answer is a. how to make proposal that works.

indeed, the register is quite formal and the tone is especially objective as it avoids the use of the first and second person singular (i, you) and opts instead for the third person plural which is more impersonal and focuses on the data and the argument that is being developed by the author. the formality adds the impression of respectability to the work and the impersonality adds objectivity to it.

i think the answer is b