When Dealing with Security Interest,the Failure of a Creditor to Register

When dealing with security interest,the failure of a creditor to register

A) will result in a legal offence,which invalidates the creditor's interests.
B) would always be quite foolish.
C) may be a matter of too much trouble and expense.
D) will risk that the debtor can prevail in a lawsuit.
E) allows the provisions in the Sale of Goods Act to govern where there is an innocent third party.