Answer: C

Credit risk prevention and control measures for personal business loans include: ① Strengthen the investigation and analysis of the borrower's repayment ability; ② Strengthen the management of the enterprises controlled by the borrower ③ Strengthen the investigation and analysis of the guarantor's guarantee ability; ④ Strengthen the investigation and analysis of the value of the collateral. In order to effectively avoid the credit risks caused by changes in the value of the collateral, in addition to the three items of ABD, you can also take The measures include: recovering the loan in advance as stipulated in the contract or in accordance with the law.