Advancing technology could possibly make us

A．Because nobody is optimistic about the future.
B．Because human beings are unable to do so.
C．Because people disagree with each other in many ways.
D．Because people are not interested in it.

A．retraining of old people in modern skills.
B．the trend toward early retirement.
C．the expansion of agriculture and manufacturing industry.
D．the declining younger labor force.

A．Because it is believed that to manage an older workforce is challenging.
B．Because retirement expands opportunities for self-fulfillment in later life.
C．Because older workers can adjust to retirement soon.
D．Because it is supported by both government and private industry.