<u>he was the first person to produce a commercial printer;</u>
<u>Yes</u>
<u>Explanation:</u>
it is important to note that prior to his invention, written publications weren't available. In about 1453 Johannes Gutenberg's invention allowed for books to be printed using movable type ffor the first time; such as his own Bible translation called the Gutenberg Bible.
Net Skeptics (those not in support of internet publishing) would be a fan of Gutenberg since they prefer hard copy books than digital formats and because he brought about the mass distribution of written literture.
The Answer is B. “More conclusive proof that the quipu is a language comes from an old manuscript, a series of handwritten pages from the 17th century.”
