hmwk help plz

Joe sells piano's on credit and is given a security interest in those pianos, that interest is called: O a purchase money security interest. O a future transaction. O a floating lien. O none of the above. Question 5 2 pts A security interest that is effective against a third person and against the buyer is called a: o universal security interest. O prohibitive security interest. O perfected security interest. O protective security interest