Why Have Politicians Always Favored Using Subsidies to Promote Certain

Why have politicians always favored using subsidies to promote certain economic activities?

A) They can be treated as benefits that can be widely spread in response to many demands.
B) They are generally cheaper than other forms of government support.
C) Recipients are always required to pay back the subsidies.
D) Congress does not have to pass legislation in order to provide subsidies.
E) They are paid for through international tariffs rather than personal income taxes.