Dennis purchased a big screen television from abc electronics and financed the purchase through abc electronics based on an agreement granting abc electronics a security interest in the television and requiring that dennis make monthly payments. three months later, because dennis had bought a boat, a new car, an expensive engagement ring for his girlfriend, and some other items, he was unable to continue making payments on the television. the manager from abc electronics called and asked dennis to return the television. dennis refused on the basis that abc electronics never perfected its interest in the television. which of the following is the correct term for designating the effect of the failure of dennis to continue making payments?