A Decides to Purchase B's Office,which Consists of an Industrial

A decides to purchase B's office,which consists of an industrial condominium unit and inventory and equipment.However,A only has enough money for the deposit and B agrees to help him.In this case,to help A finance the purchase,

A) a mortgage/charge on the condominium unit and a chattel mortgage on the inventory and equipment.
B) B will give A a mortgage/charge on both the condominium unit and the inventory and equipment.
C) B will enter into a conditional sales agreement with A.
D) B will give a chattel mortgage on the condominium unit and a mortgage/charge on the inventory and equipment.
E) a mortgage/charge on the condominium unit and a floating charge on the inventory and equipment.