What item did Trump threaten to impose 100% tariffs on if companies did not produce it in the US?

The correct response relates to Donald Trump's emphasis on bringing manufacturing back to the United States, particularly regarding critical technology. He specifically threatened to impose 100% tariffs on computer chips if companies did not shift production to the U.S. This was part of a broader strategy to boost domestic manufacturing and reduce reliance on foreign suppliers, especially given the growing importance of computer chips in various sectors including automotive, electronics, and national security. The focus on computer chips reflects their significance in the contemporary economy.

The other choices, while they represent significant industries, did not receive the same level of focus for tariff threats from Trump in the context described. Steel and automobiles are areas Trump has addressed in terms of tariffs, but they are not the same as the strategic targeting of computer chips driven by modern supply chain concerns. Clothing did not have the same level of urgency tied to national security and technology competitiveness as computer chips, making the latter the most relevant item in this context.