The science of economics, which for four decades was
dominated by Keynesians, who at first stressed the governments role in stimulating the economy, but who were ultimately led away from solutions based on government intervention.
A. economics, which for four decades was-
B. economics that was to be- Use of to be
C. economics, one which has, for four decades, been- one and which
D. economics is one that for four decades has been- one and that avoid
E. economics, for four decades, is one that was--- one and that avoid