【单选题】The aging of society in Japan foreshadows challenges ahead for other advanced industrial nations like the United States. About 20% of the Japanese population is over age 65 (compared with 12% in the U...
A.
The aging of society will be a challenge for Japan.
B.
Japan is working hard to cope with its population problems.
C.
Lonely death means the death of an elderly person who has no relatives or friends.
D.
Lonely death indicates the collapse of the traditional family system.