Which of the following statements is not true under U.S. GAAP? a) Operating segments can be determined by looking at a company's organization chart b) companies must combine individual foreign countries into geographic areas to comply with the geographic area disclosure requirements c) companies that define their operating segments by product lines must provide revenue and asset information for the domestic country, for all foreign countries in total, and for each material foreign country d) companies must disclose total assets, investment in equity method affiliates, and total expenditures for long-lived assets by operating segment