Answer:
-Diego is correct because the loan has to be paid in full by a specific date.
Step-by-step explanation:
Closed-end-credit is a type of credit where a fixed amount is borrowed and must be repaid in full by the end of a specified period. The amounts to be paid back are the principal and the interests. Sienna took a closed-end-credit because her loan was issued at a go, and she had to repay after 48 months.
Open-end credit is like a revolving fund. The borrower is allowed credit up to a specific limit. Once they make repayments, they can re-access the facility.