In order to liquidate borrow, cTokenCollateral can be used. This is done by using the cTokens protocol which allows users to borrow and lend digital assets on the Ethereum blockchain. The cTokens protocol works by allowing users to deposit their digital assets as collateral and borrow a certain amount of cTokens in return. These cTokens can then be used as collateral to liquidate borrows. The liquidation process is triggered when the value of the cTokens drops below a certain threshold. When this happens, the collateral is used to repay the borrow and the remaining amount is returned to the borrower. This process helps to ensure that lenders are protected from losses due to volatility in the digital asset markets.