After the investment agreement comes into effect, enter the investment delivery procedure (C is correct). The equity investment fund manager will transfer the investment funds into the account of the invested enterprise or its shareholders according to the amount and time (A and B are correct) agreed in the investment agreement. If it is to manage equity investment funds, it needs to be approved by the custodian and transferred to the operation. The invested enterprise shall register the industrial and commercial change of equity according to the investment agreement and relevant laws and regulations, and change the articles of association according to the investment agreement. (d error)