C. Providing free health care for sick older people.

　　D. Supplying life-long learning programs to older people.

　　10. The author concludes in the last paragraph that

　　A. governments have spent lots of time in solving the ageing problem

　　B. population ageing is a hard problem, but it needs to be solved urgently

　　C. people are too busy to solve the population ageing problem

　　D. much time and effort will be lost in solving the ageing problem