How does the information presented in paragraph 2 help to illustrate why there were so few books prior to Gutenberg's invention?

A.
Because the process of creating books was so labor-intensive before the invention of the printing press, there were very few books available.

B.
Because books were only created in monasteries before the invention of the printing press, only religious texts were published, so there were very few books.

C.
Because books had to be written by hand, and illustrations had to be added after each page was complete, only very short texts were considered for book-making.

D.
Because no one in Medieval Europe valued intellect and culture, there was very little interest in creating books before the invention of the printing press.

A. Because the process of creating books was so labor-intensive before the invention of the printing press, there were very few books available.