If we consider the interests of both consumers and producers, then a policy of tariff reduction in the U.S. auto industry is: a. In the interest of the United States as a whole, but not in the interest of auto-producing states b. In the interest of the United States as a whole, and in the interest of auto-producing states c. Not in the interest of the United States as a whole, nor in the interest of auto-producing states d. Not in the interest of the United States as a whole, but is in the interest of auto-producing states