"Tariffs and other trade restrictions increase the domestic scarcity of products from abroad. Such policies benefit domestic producers of the restricted products at the expense of domestic consumers." This statement:

a. Is essentially correct
b. Contains one error; the trade restraints do not increase the scarcity of foreign-produced good
c. Contains one error; domestic producers gain at the expense of foreign producers rather than domestic consumers
d. Contains two errors; trade restraints do not increase the domestic scarcity of product and neither do they harm domestic consumers