单选题 Paul Thomas, CFA, is designing a new layout for research reports his firm writes and issues on individual stocks. In his design, Thomas includes a stock chart on the first page of each report. He does not reference that the charts are copied from an unrecognizable Finance web site. Thomas has: A. not violated CFA Institute Standards of Professional Conduct because these charts are widely available over the Internet. B. violated CFA Institute Standards of Professional Conduct because he did not make sure that the information in these charts is accurate. C. violated CFA Institute Standards of Professional Conduct because he did not state the source of the charts.