We Have a Constitutional System That So Fragments and Divides

We have a constitutional system that so fragments and divides power that it's impossible to give this country effective, long-run leadership . . . . The system has led to an inability to plan and get on top of problems ahead of time. Even at best, this country has always been twenty to sixty years behind other industrial democracies in dealing with tough problems. -James MacGregor Burns, 1988
Parliamentary systems might not show the same fragmentation that Burns finds in the American system because in parliamentary systems

A) more real power is given to local governments
B) power is not divided among three branches of government
C) governments do not try to play an active role in the economy
D) political parties do not differ over important issues