Read this portion of an outline from a passage.
I. Print books and E-books
A. Print Books
1. Physicality of print books
2. Environmental friendliness of print books
3. Cost of print books
4. Convenience of print books
B. E-books
1. Physicality of e-books
2. Environmental friendliness of e-books
3. Cost of e-books
4. Convenience of e-books
What comparison strategy does the author use in the passage?
subject-by-subject comparison
facts-versus-opinions comparison
advantages-versus-disadvantages comparison
point-by-point comparison