What Is a Key Reason Why Canadians Might Travel Abroad

What is a key reason why Canadians might travel abroad for health care?

A) because surgeries are too costly
B) because the quality of health care at home is too low
C) because there are too many doctors in Canada
D) because the government is only willing to pay the full costs of medical care that is delivered in a country where treatment is less expensive
E) because at home there are lengthy delays with some medically necessary operations