The changes in the skills needed for work in the new economy are prompted mainly by ______.

A．A worker's incompetence in shifting between roles.
B．Moderate competition in research and education.
C．The emphasis of collective efforts directed at a task.
D．More specialized jobs resulting from division of labor.

A．the emergence of a new economic and political order
B．the features of work and career education in the new era
C．the influence of the evolving global economy on education
D．the need for new rules of competition in the international market