Capital can be differentiated between physical capital and human capital. human capital is a. the new developments in machinery and software. b. the knowledge and skills workers acquire from education and training or from their life experiences c. the goods manufactured to produce other goods and services. d. the energy use to bring together the factors of production to produce goods and services. which of the following is the best example of human capital? a. a manager devotes more spending to research and development b. a worker pays less taxes c. a worker gets a college degree d. a manager buys workers more personal computers