问题如下:
In health care insurance, is it usually the case that:
选项:
A. Premiums cannot increase from year to year
B. The insurance company can change premiums as it reassesses risks
C. Premiums increase with the age of the policyholder
D. Premiums can increase as the overall cost of health care increases
解释:
D. Health insurance premiums can increase from year to year but the increase should only reflect overall increases in health care costs.