Holding technology and human capital fixed in techland, increasing physical capital per worker from $25,000 to $100,000 would have led to a doubling of real gdp per worker, from $40,000 to $80,000 during the 1980 to 2010 period. however, not only did physical capital per worker increase from $25,000 to $100,000, but technological progress shifted the productivity curve upward so that the actual increase in real gdp per worker during the 1980 to 2010 period was from $40,000 to $320,000.according to the scenario: technological progress and productivity growth in techland, what was the growth rate of real gdp per capita in techland during the 1980 to 2010 period?

a. 2.0 percent
b. 4.5 percent
c. 6 percent
d. 17.5 percent