Read the following two selections from the article.

The gazette publishers and pamphlet printers also circulated the writings of commentators such as Samuel Adams, John Dickinson and Thomas Paine, who rose to the status of opinion leaders.

Exposure to the same arguments and debates gave rise to a shared political vocabulary, expressed in slogans such as "no taxation without representation," and helped spread regional sentiment and support for both the patriotic and royalist causes.

How do these two selections MOST contribute to the effectiveness of the author's argument?

A. They provide facts to help explain the relationship between Britain and the 13 colonies prior to the American Revolution.
B. They provide opinions of colonists that were originally published in newspapers about the American Revolution.
C. They provide quotes from founding fathers to help convince the reader that the American Revolution was necessary.
D. They provide examples to demonstrate that newspapers were an influential cause of the American Revolution.