PL HELLLPPP From "Amazon. com." Encyclopedia Britannica. Encyclopedia Britannica Online School
Edition. Encyclopedia Britannica, Inc., 2013. Web. 10 Jan. 2013.
'The Kindle Shakes Up Publishing'By 2010 the rift between book publishers and Amazon. com over the price of e-books
had grown. The publishing company Macmillan Books threatened to pull its e-books
from Amazon. com, which retaliated by removing all Macmillan books, both printed
and electronic, from the site. However, within weeks, Amazon. com capitulated and
allowed Macmillan and other publishers to set prices oe-books.

What is the central idea of this passage?

O Macmillan Books is a large and important publisher.

O A major publisher refuse
ed to allow its e-books on the Kindle.

Amazon changed its approach to pricing e-books.

O There is broad disagreement about how much e-books should cost.