Nancy Hall, a candidate in the CFA program, is an analyst for a mutual fund. As part of her job she makes company visits to interview executives. On a recent trip she stayed with her sister instead of at a hotel. In her expenses Hall included a hotel charge of $100, which was less than the amount allowed by her employer. After receiving a check for her expenses, Hall disclosed to her supervisor that she had stayed with her sister instead of at a hotel. She also returned the $100 to her employer. According to CFA Institute Standards of Professional Conduct, which of the following statements best describes Hall's professional conduct?