Answer: B, C, E

According to the provisions of Article 30 of the "Administrative Measures for Commercial Student Loans", any breach of contract by the borrower or guarantor during the loan period , the lender can stipulate in the loan contract: (1) Require the breach of contract to be corrected within a time limit. (2) Request to increase the corresponding value of the collateral (pledge) that has been reduced, or to change the guarantor. (3) Stop issuing unused loans. (4) Penalty interest will be charged on the basis of the original loan interest rate. (5) Recover part or all of the loan principal and interest in advance. (6) Recover compensation from the guarantor. (7) Dispose of the mortgage (pledge) in accordance with relevant laws and regulations. (8) Apply to the arbitration agency for arbitration or file a lawsuit in the People's Court.