The candidate had to be trained as a scholar and then pass a series of written examinations. The Chinese civil service system, established in 124 B.C.E., required potential officials to be trained as scholars and then pass rigorous examinations to qualify for office.
The consumer goods may go to the troops instead of the citizens. For example, during World War II, citizens were encouraged to plant victory gardens- if more people grew their own vegetables, more canned goods could be given to soldiers.
D- a person can communicate instantly with others almost anywhere in the world