Which statement about johannes gutenberg is true? a. he developed a new method of glassmaking that remained a closely guarded secret for centuries. b. he proposed a new educational program that became known as humanism. c. he served as the head of the powerful weavers' guild in the german city-state of augsburg. d. he invented a printing press with moveable type and used it to make copies of the bible.

Which is one reason many african nations have not prospered after gaining independence from european colonial powers? a. colonial powers sent their weakest economic advisors to the new countries, and their recommendations were flawed. b. independence left them with weak economies, and many countries have been unable to overcome or recover from these burdens. c. the desert region of the interior is inhospitable to foreign investors, and business interests focused on the coastal mediterranean cities. d. the money endowed upon independence is still tied up in the bank of england, which is hesitant to make loans to struggling nations.