Answer: C

Credit line is a quantitative control indicator determined by the bank to provide short-term credit support to a certain customer within a certain period. The credit limit includes the limit for opening a letter of credit, so C is correct. An entrusted loan refers to a loan in which the principal provides funds and is issued by the bank (trustee) based on the borrower, purpose, amount, currency, term, interest rate, etc. determined by the principal, and assists in supervising its use and recovery. Entrusted loans are not commercial The bank's credit business is a fee-based intermediary business.