Answer: C, D, E Knowledge point: Social insurance fund.
Article 69 of the "Social Insurance Law" stipulates that social insurance funds, on the premise of ensuring safety, invest and operate in accordance with the regulations of the State Council to maintain and increase value.
Social insurance funds shall not be invested and operated in violation of regulations, shall not be used to balance other government budgets, shall not be used to build or renovate office spaces or pay personnel expenses, operating expenses, management expenses, or be misappropriated for other purposes in violation of laws and regulations.