In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.

Let me give you an example: This list contains the top 25 accounts with the most followers on the social photo-sharing platform Instagram. As of May 2018, the most followed user is Instagram's own account, with over 235 million followers. Selena Gomez is the most followed individual, with over 137 million followers. Ten accounts have exceeded 100 million followers on the site.
The answer to this example can be: who has the maximum number of followers on instagram
Here is why: The answer is talking about the Instagram accounts that have the most followers. The question asking about the maximum number of followers. So this is a good example.

OK. solve this:
The Tariff Act of 1890, commonly called the McKinley Tariff, was an act of the United States Congress framed by Representative William McKinley that became law on October 1, 1890. The tariff raised the average duty on imports to almost fifty percent, an act designed to protect domestic industries from foreign competition. Protectionism, a tactic supported by Republicans, was fiercely debated by politicians and condemned by Democrats. The McKinley Tariff was replaced with the Wilson -- Gorman Tariff Act in 1894, which promptly lowered tariff rates.
Answer:
what was the mckinley tariff act of 1890