Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following 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.
Solution: who has the maximum number of followers on instagram
Reason: 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.

Now, solve this instance: A currency transaction report (CTR) is a report that U.S. financial institutions are required to file with FinCEN for each deposit, withdrawal, exchange of currency, or other payment or transfer, by, through, or to the financial institution which involves a transaction in currency of more than $10,000. Used in this context, currency means the coin and / or paper money of any country that is designated as legal tender by the country of issuance. Currency also includes U.S. silver certificates, U.S. notes, Federal Reserve notes, and official foreign bank notes.
Student:
when do you have to file a ctr