Which of the follouwng statments characterizes how the United States and Canadian systems differ along the prinicple of comprehensiveness of coverage? a) the canadian healthcare system covers services from primary longterm care; US health insurance covers the individual insofar as their insurance or personal funds cover the srevice b) Canadians receive only partial coverage of their service costs; US insurance covers all costs c) the Canadian and US systems both cover the costs of nearly every kind of health services d) The Canadian system covers all costs, the US system uses a pay as you go taxation model