This involves breaking down large amounts of cash into smaller transactions that are below the reporting threshold of $10,000 in the United States, in order to avoid detection and reporting by the financial institution.
Structuring is a red flag for money laundering and should be reported to the authorities as a suspicious activity. The other options are not necessarily indicative of money laundering, as they could have legitimate explanations. For example, the customers may have a family or business connection to the same recipient in Country B, or they may have a regular need to send money three times a week.
References:
* ACAMS CAMS Certification Video Training Course, Chapter 2: Money Laundering Risks and Methods, Section 2.2: Common Money Laundering Techniques
* Exam CAMS: Certified Anti-Money Laundering Specialist (the 6th edition), Question 91
* CAMS Certification Package - 6th Edition, Study Guide, Chapter 2: Money Laundering Risks and Methods, Page 38