单选题 Judy Dudley, a CFA candidate, just started her new job as an analyst and plans to make her first visit to a company that she is analyzing. According to CFA Institute Standards of Professional Conduct, which of the following statements regarding special cost arrangements and gifts is TRUE? To comply with the standard, Dudley should accept: A. only one gift per year from a company. B. air transportation and hotel expenses on company visits only. C. company air transportation only if commercial transportation is not available.