What are two requirements with respect to supporting documentation that is used to identify potentially suspicious activity, according to Financial Action Task Force? (Choose two.)

A client is a wholesale auto business that operates as a used car lot. The client regularly ships vehicles internationally. In a four-month period, the client received wires totaling $ 1,250,000 from a dealer in Benin in West AfricA. All wires originated from Benin and were in increments of $50,000.
Account debits made to the account were payable to various transport companies. All incoming checks reference various vehicles purchased. Dock shipping receipts produced by the client to support account activity identify the vehicles but cannot easily be tied to the wires receives.
What is the suspicious behavior?

An existing customer at a bank has recently expanded its services to provide check cashing for its customers.
Which factor indicates the bank should terminate this relationship?

Law enforcement submitted a request to a bank for information regarding one of its customers.
How should the bank respond according to Financial Action Task Force Guidance?

Which activity is most likely to facilitate money laundering through on-line systems with inadequate controls?