Question

which type of loan requires collateral?
unsecured loan
secured loan
revolving loan
installment loan

Explanation:

A secured loan is defined as a loan that requires collateral (an asset like a house or car) to secure the debt. Unsecured loans don't need collateral. Revolving loans (e.g., credit cards) and installment loans (e.g., personal loans, which can be secured or unsecured) are about repayment structures, not collateral requirement by definition. So the loan requiring collateral is a secured loan.

Answer:

B. secured loan