8. To acquire human capital a person would: a. save to buy a printing press. b. purchase a printing press rather than a very large television. c. learn to use a printing press. d. sell the books that the printing press produces. 9. Historically, development of a new technology often: a. results in immediate increases in productivity. b. leads to increases in productivity only once firms learn how to use it. _c. requires a complementary increase in physical and human capital. d. has had no impact on changes in productivity