Equity investment fund industry self-discipline refers to the supervision and restraint of industry self-discipline organizations on equity investment fund market, fund market subjects and their activities. Self-regulatory organizations of equity investment funds generally take the form of trade associations, which are composed of fund managers and other fund service institutions (D error). Self-discipline of equity investment fund industry is not only the self-formulation process of industry trading rules, but also a market governance means (A mistake) juxtaposed with government supervision. Industry self-discipline is an activity that industry members jointly formulate industry rules on the basis of legal provisions and government supervision (bCorrect). Industry rules include information disclosure, conflict of interest, internal governance and operation, and industry code of conduct. At the same time, industry self-discipline is a self-discipline constraint implemented by industry self-discipline organizations. Industry self-regulatory organizations not only create industry rules, but also supervise their internal members to abide by industry rules and implement industry rules (C error).