Which of the Following Situations Would Cause Danio Corp

Which of the following situations would cause Danio Corp. to have an NSF check amount on its bank reconciliation?

A) Danio writes a check to a supplier that bounces.
B) A customer writes a check to pay Danio and that check bounces.
C) Both situations A and B will cause Danio to have an NSF check on its' bank reconciliation.
D) Neither situation A nor B will cause Danio to have an NSF check on its' bank reconciliation.