A Lesson from the Brazilian Experiment Was That

A lesson from the Brazilian experiment was that:

A) infant industry protection is almost never successful.
B) there are many determinants other than market price that also factor into an industry's success-firms had supplier difficulties and
Were hampered by excessive regulation.
C) government usually knows better than the market whether an industry has potential.
D) when politicians get involved, rational decisions and good business practices are more difficult.