单选题We learn from the text that ______.A Canadians have easy access to any type of medical care they want.B the Canadian government compensates every citizen for medical expenses.C a medical care is issued once a citizen seeks medical care.D the principle

Canadians have easy access to any type of medical care they want.

the Canadian government compensates every citizen for medical expenses.

a medical care is issued once a citizen seeks medical care.

the principle of demand and supply does not apply in the Canadian system.