Why do lenders often require a down payment when credit is used to purchase a good?

see below

Explanation:

A down payment is a lump-sum amount paid a borrower raises when purchasing an asset on credit. The down payment or deposit is paid to the lender and reduces the credit to be extended. Usually, the lender will demand a  down payment of up to 20% of the asset's value.

The down payment reduces the risk a lender takes in advancing the loan to the borrower. It reduces the loan amount involved. The down payment shows the borrower is financially stable. If they can raise 20 percent of the amount, it gives the lender confidence that the borrower can repay the loan. A down payment shows the borrower is a low-risk customer

b is your answer toy your queston

explanation: