Why Did the Welfare State Grow Faster in Western Europe

Why did the welfare state grow faster in Western Europe than in the United States?

A) There was not as much public support in the U.S. as in Western Europe.
B) The economy grew faster in Western Europe than it did in the U.S.
C) Western Europe had to placate extreme left political interests.
D) Leaders of the extreme left and radical right compromised in Western Europe.