a. Jamie purchases a washer and dryer from McKinney Appliances. She applies for the instore credit card. The application contains a clause stating that the store will retain a security interest in the goods purchased with the card until the goods have been paid in full. Discuss if this is an enforceable security interest. b. In this scenario, Jamie purchases the washer and dryer from McKinney Appliances and she signs a purchase agreement to pay $1,000 down and $100 per month until the balance, plus interest is fully paid. Is this an enforceable security interest