Imagine the U.S. and China move suddenly to improve trade relations, which results in a removal of all tariffs each side has placed on the others' goods since 2018. Which of the following U.S. manufacturing firms would be most negatively affected by this change in trade policy? Question 1 options: a) A high productivity manufacturer in an industry whose equivalent products from China had seen a large increase in import tariffs since 2018. b) A low productivity manufacturer in an industry whose equivalent products from China had seen a large increase in import tariffs since 2018. c) A high productivity manufacturer in an industry whose equivalent products from China had no change in import tariffs since 2018. d) A low productivity manufacturer in an industry whose equivalent products from China had no change in import tariffs since 2018