Answer:
B. All the pieces were made of Wood, C. the primary inventor was Johann Gutenberg, are the correct answers.
Step-by-step explanation:
Gutenberg is called the father of printing but he didn't invent printing or movable type print. Chinese were the first to develop the wood block printing and movable type. He is celebrated for his printing press that spread books and literature to the masses for the first time in Europe and it plunged Europe into the age of information (Renaissance). His first printing project produced 200 illustrated bibles, were printed in 1455. The low cost production of printing press led to the increase of literacy level among the general population of Europe. Book fairs became a common occurrence in Major European cities. Historians argue that explosion of knowledge due to the access to the standard books of Science led to the spread of new ideas quickly.