The Reasons Why Health Care Costs in Countries with Public

The reasons why health care costs in countries with public health insurance, like the United Kingdom and Canada, have not risen as much as the costs in the U.S. include the following, except

A) setting a cap on costs to ration health care.
B) waiting or queuing to ration health care.
C) fixed government budgets for health care, leading to rationing.
D) expanded coverage as a way to ration health care.