According to Smith,what Is the Difference Between Old and New

According to Smith,what is the difference between old and new work attitudes?

A) Yesterday's workers had job security only as long as they could add value to a company.
B) Yesterday's workers took more active roles in shaping their careers.
C) Yesterday's workers had to skillfully market themselves to prospective employers.
D) The keys to today's job success are self-direction,flexibility,and up-to-date knowledge and skills.