Stock prices change with surprises

In the economic way of thinking, what do entrepreneur's and bureaucrats have in common?

A) They each advance projects solely in the public interest. B) They each advance projects only if the expected marginal benefits exceed the expected marginal costs. C) They each advance projects only if the expected marginal benefits are less than the expected marginal costs. D) They each advance projects only if they impose no negative externalities.

The Great Depression and the New Deal transformed the U.S. into which type of economy?

(a) Laissez-faire (b) Socialist (c) Mixed (d) Communist