The answer is NOT collateral or positive covenant.

For each bond description of a bond feature, select the correct name for that feature The issuing company agrees to maintain a minimum current ration as a term of the bond contract positive covenant When the bond's interest and principal is paid before that of other bond issues senior The bond can only be sold by the owner recorded in the records of the bond trustee registered The issuing company agrees to limit the amount of dividends paid each year as a term of the bond contract Negative covenant Unsecured debt with an original maturity of ten years or more debenture Unsecured debt with an original maturity of less than 10 years + note . The bond has land and buildings of the issuing company pledged as collateral positive covenant . x Choose... sinking fund bearer mortgage note debenture positive covenant senior subordinated registered Negative covenant collateral