6. Under U.S. law, a(n) duty is levied when the U.S. Department of Commerce determines a class or kind of foreign merchandise is being sold at less than fair value (LTFV). A. dumping B. antidumping C. margin of dumping D. below-cost sales E. None of the above9. Antidumping law has been called unfair for which of the following reasons? (x) U.S. firms selling at home are not subject to the same rules. they do not reflect currency fluctuations. (z) they are based on average total cost. A (x). (y) and (z) (x) and (y) only (x) and (z) only (y) and (z) only (x) only