Which of the Following Arguments Is Not an Explanation of Why

Which of the following arguments is not an explanation of why it is difficult to compensate losers for the effects of opening an economy to international trade?

A) Identifying the losers is difficult, as they are spread throughout the economy.
B) Free trade gain is made over a wide array of goods and services and is hard to identify.
C) It is difficult for governments to carry out such redistribution policies.
D) The government wants to keep the gains from trade to finance its own expenses.