(From "Books Before and After Johannes Gutenberg, Illuminate) Question: Which sentence in the passage explains why there weren't many books before Gutenberg? (1 point) Responses Before Gutenberg's invention, there were perhaps 30,000 books in all of Europe. Before Gutenberg's invention, there were perhaps 30,000 books in all of Europe. Large monasteries had rooms called scriptoria where monks copied manuscripts — all by hand. Large monasteries had rooms called scriptoria where monks copied manuscripts — all by hand. Gutenberg's invention is, in fact, often described as the beginning of the information age. Gutenberg's invention is, in fact, often described as the beginning of the information age. In Medieval times, books were about religious topics only; the printing press enabled the printing of the so-called “lost works” of classical Greece and Rome.

The sentence that explains why there weren't many books before Gutenberg is: "Large monasteries had rooms called scriptoria where monks copied manuscripts — all by hand."