Concept:In lending, the asset offered to secure a loan is called collateral.
Explanation:The sentence needs a word for property used as a guarantee for repayment.
A borrower can offer a valuable item, such as a house or car, to protect the lender.
If the borrower defaults, the lender may take that asset.
This type of loan security is best described as "collateral."
"Pledge" usually means a serious promise, not a physical asset.
"Surety" normally refers to a person who guarantees another person's debt.
"Agreement" means a contract or mutual understanding.
Therefore, only "collateral" correctly completes the sentence.
The other choices do not match the meaning of property used to secure a loan.
Thus, the best option is C.
Answer:C. collateral