Which of the following is not considered a source of increased labor efficiency?
QUESTIE‘H 22 Whlch cf the felluwlng ls mt mnsitlseed a seurce ef Increased lather efflclericfi’ C" Technological pregreee C: Realleeatiue cflabcr flee: less In more preductitre mes :5: Changes in scciety‘s inetimflcnal and cultural setting and resulting public policies C" Increases in the capital-labor ratie